(a) In electron-volts, how much work does an ideal battery with a 12.0 V emf do on an electron that passes through the battery from the positive to the negative terminal? (b) If 3.40 * 10^18 electrons pass through each second, what is the power of the battery in watts?

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Q: 3. A 20 µF capacitor is charged to 120 V and then disconnected from the power supply. If a second…

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A: Given,I1 = 0.3 mAI2 = 0.4 mAR1 = R2 = R3 = 3000 Ω

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A: According to the conservation of energy, the electrical energy of the accelerating electron is equal…

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A: Given: The temperature of the center of the Sun is 15 million degrees Celsius.

Q: A 0.25 μF capacitor is charged to 50 V. It is then connected in series with a 25 Ω resistor and a…

A: The charge on the capacitor connected across a 50 V source is, Q=CV=0.25 μF50 V=12.5 μC The stored…

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Q: In the figure &1 = 4.21 V, 82 = 0.945 V, R = 4.11 0, R2 = 2.36 0, R3 = 4.71 Q, and both batteries…

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Q: If 5.0 x 1021 electrons pass through a 20.2 Q resistor in 10 min, what is the potential difference…

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A: Potential difference between the two ends of cathode ray tube (V) = 2000 V New Potentail difference…

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A: The expression to determine the voltage,

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Q: The temperature near the center of the Sun is thought to be 15 million degrees Celsius  ⎝1.5×107ºC⎞…

A: Given: The temperature near the center of the sun is T=1.5×107 ⁰C. The expression for the…

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A: Given data:  Current (A) = 20 A Time (t) = 10 s Required: The number of electrons passed

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A: Given, Number of electrons pass n =5 x 1021 Resistance R = 21.6 ohms Time t = 10 min = 600 sec…

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Q: A storage battery is being charged at a rate 8f 100 Watts at a potential difference of 13.6 V . The…

A: Given:  Power P= 100 W Voltage V= 13.6 V rate of charge transfer= current (i)

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A: Since the capacitors are in parallel, the equivalent capacitance will be Ceq=C1+C2

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Q: Two 2.0cm x 2.0cm metal electrodes are spaced 1.4 mm apart and connected by wires to the terminals…

A: Given:area of the plates is, A= 2 cm×2cm = 4 cm2 = 4×10-4 m2distance between the electrodes, d =…

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A: Voltage of battery = 12V

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A: Given, Voltage=12V Distance=0.050m

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Q: If a = 30 cm, b = 20 cm, q = +6 nC, and Q = -4.8 nC in the figure, what is the potential difference…

A: 1. Here in the aove question , we given that ,  distance a= 30 cm = 0.3 m  b= 20 cm = 0.2 m  q= 6 nC…

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Q: If 5.0 × 1021 electrons pass through a 25.3 Q resistor in 10 min, what is the potential difference…

A: Option B is the right answer  Potential difference across resistance is  33.73 V

Combination of Capacitors

The connection of capacitors can be established in a circuit in two ways.