Title: Exp10
Course: مختبر فيزياء عامه 2 الشعبة 10 عملي

Q: In the RC circuit, when a resistor R=100 M\( \Omega \) is connected to a capacitor C= 1µF (initially uncharged) and a battery, then the capacitor will reach 0.63 of its maximum charge in
- 100 sec
- 1 sec
- 5 sec
- Instantly (less than 1 ms)
A: 100 sec

Q: Using the figure on the side, when the switch S is put in position a

[Image]
- The capacitor is charging and the current is maximum
- The capacitor discharging and the current is maximum
- The capacitor is discharging and the current is minimum
- The capacitor is charging and the current is minimum
A: The capacitor is charging and the current is maximum

Q: Using the figure on the side, when the switch S is put in position b (assuming the initial charge on the capacitor is not zero)

[Image]
- The capacitor is discharging and the current is maximum
- The capacitor charging and the current is maximum
- The capacitor is charging and the current is minimum
- The capacitor is discharging and the current is minimum
A: The capacitor is discharging and the current is maximum

Q: [Image]The figure on the side is showing how the voltage on the capacitor in an RC-circuit changes with time

The time needed for the capacitor to lose half its maximum charge
- 20 sec
- 30 sec
- 40 sec
- 80 sec
A: 20 sec

Q: [Image]The figure on the side is showing how the voltage on the capacitor in an RC-circuit changes with time.

The time constant \(  \tau \) for the circuit is
- 30 sec
- 13 sec
- 40 sec
- 80 sec
A: 30 sec

Q: [Image]The figure on the side is showing how the voltage on the capacitor in an RC-circuit changes with time

If the capacitor has a magnitude of 30 µF, then the resistor R has the value of
- 1 M\( \Omega \)
- 30 M\( \Omega \)
- 30 \( \Omega \)
- 10 \( \Omega \)
A: 1 M\( \Omega \)