Rank the following inductors in order of the potential difference Vab , from most positive to most negative. In each case the inductor has zero resistance and the current flows from point a through the inductor to point b. (i) The current through a 2.0 mH inductor increases from 1.0 A to 2.0 A in 0.50 s; (ii) the current through a 4.0 mH inductor decreases from 3.0 A to 0 in 2.0 s; (iii) the current through a 1.0 mH inductor remains constant at 4.0 A; (iv) the current through a 1.0 mH inductor increases from 0 to 4.0 A in 0.25 s.

Q: The switch in a R-L circuit is closed allowing current to flow from a 12 volt battery. If the…

A: In R-L circuit, The potential difference of the battery is V = 12 V. The resistance of the resistor…

Q: An 9.5 H inductor is connected in series to a 18 V battery, a resistor, and a switch which has been…

A:

Q: What differential equation corresponds to an RL circuit with a resistor of R = 100 and an inductor…

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Q: The 4.90 A current through a 1.50 H inductor is dissipated by a 1.90 A resistor in a circuit like…

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Q: The voltage across a 200 mH inductor is given by v(t) = 3t2 + 2t +4 V for t > 0. Determine the…

A: Inductance, I = 200mH Voltage v(t)=(3t2 + 2t +4) V  i(0) = 1A

Q: Consider a capacitor C = 1.0 × 10¬4 Farad connected to an inductor L = 2.0 × 10¯³ Henry as shown in…

A: (a) Let q0 be the initial charge on the capacitor, and C be its capacitance. Write the expression…

Q: A 17.0 mH inductor, an 7.00 Ω resistor, and a 6.00 V battery are connected in series. The switch is…

A:

Q: A 3.7 mH inductor is initially connected to a 4.6 V battery at t = 0 through a 3.0 Ω resistor. Once…

A: Given: Inductance of an inductor (L) = 3.7 mH. Supply voltage (ε) = 4.6 V. Resistance (R) = 3.0 Ω.…

Q: A 30.0-mH inductor and 9.00-Ω resistor, together with a switch, are connected in series to an ideal…

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Q: Initially, an inductor with no resistance carries a constant current. Then the current is brought to…

A: An inductor with no resistance is given. current is changed to new value (constant) which is twice…

Q: 20) 13 R2 R1 An inductor with inductance L = 0.5 H and negligible resistance is connected to a…

A: Given : L = 0.5 H R1 = 10 Ω R2 = 20 Ω ε = 120 V

Q: S 13 R2 R L An inductor with indu ctance L = 0.4 H and negligible resistance is connected to a…

A: R1 = 20 R2 = 30 L = 0.4 H V = 180 V To find = Value of t for which  has half of the final value…

Q: An electromagnet can be modeled as an inductor in series with a resistor. Consider a large…

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Q: A 1.25 H inductor in an RL circuit (with resistance 2.2 Ω) is initially fully charged. A switch is…

A: When the switch is at position 2, the expression for the current will be,

Q: An inductor of L = 7.75 H with negligible resistance is placed in series with a 8 = 14.9 V battery,…

A:

Q: The circuit below contains an inductor (L = 3 H) with an internal resistance R3 = 60 ohm. The other…

A: As soon as the switch is on, the current in inductor will be zero. i3=0 rest i1 and i2 will be in…

Q: A series circuit contains a 4.10-H inductor, a 6.00-9 resistor, and a 7.00-V battery. The current is…

A:

Q: A 5.00 Ω resistor, an 27.50 mH inductor, and a 13.80 V emf are connected in series. (a)Calculate…

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Q: An inductor of L = 7.75 H with negligible resistance is placed in series with a 8 = 12.1 V battery,…

A: In the seriesL and RV=VR+VLV=IR+LdIdtI(t)=VR1-e-RtLt=0,I0=VR(1-e)I0=0given that,v=12.1 vR=3 ΩL=7.75…

Q: ... A V = 86-V source is connected in series with an R = 1.8-kΩ resistor and an L = 28-H inductor…

A: As given, Voltage, V=86 V Resistor, R=1.8 kΩ=1.8×103 Ω Inductor, L=28 H   At time t=0, the current…

Q: Inductor 1 stores the same amount of energy as inductor 2, although its inductance is only half the…

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Q: The series circuit shown in the figure contains an ideal battery with a terminal voltage Vg = 55 V,…

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Q: A resistor R and an ideal inductor L are connected in series to an ideal battery having a constant…

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Q: A 7.2-mH inductor is connected to a current. What is the magnitude of the voltage in the inductor at…

A: The inductance of the inductor, L =7.2 mH Current through the inductance circuit, I(t) = 5+7t-2t2…

Q: A battery of emf 30.0 V is connected to a switch, an inductor of inductance ? = 0.600 ? and two…

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Q: A 12-V battery is connected in series with a resistor and an inductor, with R = 10 Q and L = 20.0 H,…

A: Given, Battery, V = 12 VInductor, L = 20.0 HResistor, R = 10 Ω

Q: Two inductors, L1 and L2 (where L1 > L2) are connected in series. When their fields oppose each…

A: Given: The total inductance when fields aid each other is 44.2 mH. The total inductance when fields…

Q: 13 R2 R1 L An inductor with inductance L = 1 H and negligible resistance is connected to a battery,…

A:

Q: [2 JA 34.6-mH inductor and 5.78 - resistor, together with a switch, are connected in series to an…

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Q: A 27.0 mH inductor, an 6.00 Ω resistor, and a 6.00 V battery are connected in series. The switch is…

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Q: An inductor and a resistor are connected in series across anAC generator, as shown in Figure…

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Q: 14.0-mH inductor is connected to a North American electrical outlet (ΔVrms = 120 V, f = 60.0 Hz).…

A:

Q: An 8.0 mH inductor and a 2.0 Ω resistor are wired in series to an ideal battery. A switch in the…

A: We know              the relation of current in LR circuit at a time t with the maximum current.…

Q: 남 17. R. 전자석은 저항과 직렬로 연결된 인덕터로 생각할 수 있다. 유도 계수 L-12.0 H 와 저항 R-400 Ω 울 가진 큰 전자석이 240 V의 배터리와 스위치에…

A: Given: The inductance is L=12 H. The resistance is R=4 Ω . The voltage is E=240 V.   The…

Q: A series circuit contains a 4.60-H inductor, a 6.00-Ω resistor, and a 5.50-V battery. The current is…

A: L = 4.60 H R = 6 ohm V = 5.5 volts Imax = VR= 5.56= 0.916 A

Q: Initially, an inductor with no resistance carries a constant current. Then the current is brought to…

A:

Q: The current i through a 4.7 H inductor varies with time t as shown by the graph of the figure. The…

A: The induced emf (ε) in a coil, with an inductance of L as a result of the change in current ∆I in ∆t…

Q: An inductor of L = 6.95 H with negligible resistance is placed in series with a 8 = 15.7 V battery,…

A:

Q: A single-loop circuit consists of a 7.2 Q resistor, 11.9 H inductor, and a 3.3 UF capacitor.…

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Q: The current follows in a charging inductor I(t) at time t seconds is given by: i(t) = 1,(1– e) mA…

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Q: A cr IS constructed one inductor, one battery and a switch as shown. The values for the resistors…

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Q: Initially two capacitors each of capacitors C have charges as shown and the inductor L has zero…

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Q: A 26-mH inductor, an 8.5-N resistor, and a 6.1-V battery are connected in series as in the figure…

A: (a) voltage drop across the resistor at t=0 VR=ε1-e-tτ=ε1-e-0τ=ε1-1=0

Q: A 24.0-V battery is connected in series with a resistor and an inductor, with R = 9.20N and L = 9.20…

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Q: A 19.0 mH inductor, an 6.00 Ω resistor, and a 9.00 V battery are connected in series. The switch is…

A: For a DC voltage supply the the net resistance of the inductor is zero.  So net resistance in the…

Electromagnets

The word "electromagnet" is composed of two words, ‘electro’ and ‘magnet’. It is a type of magnet in which an electric current helps in the generation of a magnetic field. Electromagnets usually consist of two major parts, wire and a coil around which the wire is wound. This is called a solenoid. When an electric current is allowed to pass through the coiled wire, the electric current produces a magnetic field. This magnetic field is present only when current is passing through the wire.