Integrated ConceptsThe motor in a toy car is powered by four batteries in series, which produce a total emf of 6.00 V. The motor draws 3.00 A and develops a 4.50 V back emf at normal speed. Each battery has a 0.100 Ω internal resistance. What is the resistance of the motor?

Q: A switch has a variable resistance that is nearly zero when closed and extremely large when open,…

A: Given data: Resistance when switch is closed, Rclosed=0 Resistance when switch is open, Ropen=∞

Q: Suppose a power supply has an emf of 20 Volt and an internal resistance of 10 Ohm. The maximum power…

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Q: R2=60 R1=82 Position Voltage Current Resistance Power(W) (A) (0) (V) 1 R3-30 3. 30V Total Ω Ω 30V…

A: By finding equivalent resistance, we have to complete the table.

Q: che 200 Q resistor is zero, the emf

A: According to kirchhoff law  Sum of potential differences in a loop is always zero

Q: If two household lightbulbs rated 60 W and 100 W are connected in series to household power, which…

A: Brightness of a bulb

Q: Household electrical outlets operate at 120 Volts. A microwave oven is rated at "120V, 1.0 kW"…

A: The given data are listed below with appropriate variables. Here, V denotes the potential across…

Q: Someone argues that a resistor R=100 Ω run by 5 V DC heats up faster than the same resistor run by 5…

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Q: Integrated Concepts Hydroelectric generators (see Figure 20.43) at Hoover Dam produce a maximum…

A: a) The expression for output power is P=VI Substitute values in the above equation…

Q: Why does alternating current work so well for wireless charging and induction stoves?

A: solution is given as

Q: The big mal near Sally and Amy's city has extended their operating hoursto accommodate the huge…

A: Let the time in which battery discharges completely be t. the power consumed by the bulb of power P…

Q: When a portable fan is first turned on it draws 4.25 AA. After it has come up to speed it draws 0.50…

A: Given Data: Initial current drawn, Ii=4.25 A After speed up current drawn gets reduced. Therefore,…

Q: What current I is needed to transmit 145 MW of power over a transmission line held at a voltage of…

A: Question ? What current I is needed to transmit 145 MW of power over a transmission line held at a…

Q: At t= 0, the switch S is closed, and the capacitor charges to 11% of its final charge in 5 s. Find…

A: Capacitor stores charge to 11%  Time taken is t = 5 s

Q: A person with body resistance between his hands of 10.0 kΩ accidentally grasps the terminals of a…

A: Body resistance of the person between his hands (R)=10 kΩ Supply between the terminals (V)=20 kV

Q: 81. Electric Circuit After the switch is closed in the circuit shown, the current t seconds later is…

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Q: A heater is rated as 230 V, 10 kW, A.C. The value 230 V refers to O a. r.m.s. voltage b. none of…

A: A heater is rated as 230 V, 10 kW, A.C. The value 230 V refers to

Q: can you use this question to answer the d. power delivered to each resistor?

A: Power delivered to resistor = I2 R

Q: Verify that the units of a volt-ampere are watts, as implied by the equation P = IV .

A: The unit of power =W (Watt) Unit of current =A (Ampere) Unit of voltage =V (Volts)

Q: Consider the circuit shown, where G=6.0 µF, C2=D3.0 µF, and AV= 16 V. Capacitor Gis first charged by…

A: Given:- The Capacitance C1 = 6 μF C2 =3 μF The voltage V = 16 V  Find:- The Charge on the C2 ? 64…

Q: Verify that the units of ΔΦ / Δt are volts. That is, show that 1 T ⋅ m2 / s = 1 V .

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Q: The motor in a toy car is powered by four batteries in series, which produce a total emf of 6.00 V.…

A:

Q: The motor in a toy car is powered by four batteries in series, which produce a total emf of 5.20 V.…

A: Given data: Number of batteries are, N=4. Total emf is, E=5.20 V. Current withdrawn by motor is,…

Q: (05): Calculate the value of resistance Rs (in 2) when the dissipated power delivered to the…

A: Since, you have asked to solve Q5, we will solve only Q5 part for you.

Q: A DC source has Thevenin's voltage of 90 V and Thevenin's resistance of 4.5 ohms. If the maximum…

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Q: A 14 W energy efficient CFL lamp, is designed to produce the same illumination, as a conventional 60…

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Q: At $.110 per kWh, what does it cost to leave a 40-W porch light on day and night for a year? Enter…

A: Given Power of porch light is P=40 W Time is t= 1 year= 8,765.82  hours The energy delivered to the…

Q: Hydroelectric generators at Hoover Dam produce a maximum current of 8.00×103 A at 250 kV. (a) What…

A: The expression for the power output,

Q: A clock battery wears out after moving 3.45E+04 C of charge through the clock at a rate of 0.493 mA.…

A: Write the given values with the suitable variables. q=3.45×104 CI=0.493 mA=0.493×10-3 A Here, q is…

Q: With the switch open, the voltmeter reads 1.700 V. When it is closed, so that current flows through…

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Q: The circuit below shows a simple RL circuit. ll AV 1 Which of the graphs below correctly shows the…

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Q: Integrated Concepts A light-rail commuter train draws 630 A of 650-V DC electricity when…

A: a. the power is ' P=IV=650V630A=4.1×105W

Q: A 75.0KW, 230-V shunt generator has a generated emf of 243.5V. If the field current is 12.5A at…

A: Armature resistance Ra=E-VTIa=E-VTIT+If=E-VTPOV+If=EV-V2PO+IfV

Q: The figure below shows a simplified model of a cardiac defibrillator, a device used to resuscitate…

A:

Q: la. A lawn tool is powered by a 56 volt, 2.5 Ah (amp-hour) battery. When fully charged what is the…

A: 1.a The formula for the energy stored in a battery is:

Q: A 4 W night light is plugged into a 120V circuit and operates continuously for 1 year. Find the…

A: Power, P = 4 W  voltage, V = 120 V   time, t = 1 year  rate = 150 c/kWh

Q: The equation P= V2/R indicates that the power dissipatedin a resistor decreases if the resistance is…

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Q: H.W-1:- In the shown circuit determine the total current? 4kQ 12kQ 8kQ 24kQ 9kQ 3kQ 72V 12k 6kQ

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Q: THree ldentical resistors wit emf of 18.0 V and zero interna of the resistor network. (b) Fin

A: Equivalent Resistance in series R = R1 + R2  equivalent resistance in parallel 1/R = 1/R1 + 1/R2

Q: How does Ohm's Law relate to a motor?

A: How does Ohm's Law relate to a motor?

Q: The figure below shows a simplified model of a cardiac defibrillator, a device used to resuscitate…

A: given: Vc=795VV=1270 VC=8.25μF=8.25*10-6 Ft=1.20sec

Q: Is every emf a potential difference? Is every potential difference an emf? Explain.

A: The emf (Electromotive force) is the work done on a charge to move it to the terminals of the…