9 Questions
A current of 1 A flows in a conductor. If the charge of an electron is 1.6 × 10^(-19) C, then the number of electrons flowing through the conductor in 1 second is:
6.25 × 10^18
A wire of resistance R is stretched to twice its length. The new resistance of the wire will be:
4R
In a series R-C circuit, the voltage across the resistance and the voltage across the capacitor are 80 V and 120 V respectively. The supply voltage is:
156.32 V
A resistor of 2 ohm is connected in series with a capacitor of 4 microfarad. The angular frequency of the AC source is 100 rad/s. The impedance of the circuit is
2.83 ohm
In a circuit, the current I is related to the voltage V by the equation I = 2V. The resistance of the circuit is:
0.5 Ω
A current of 2 A flows through a resistance of 4 ohm. The power dissipated in the resistor is
8 W
A capacitor of 2 microfarad is charged to 100 V. The energy stored in the capacitor is
0.01 J
A current of 1 A flows through a resistor of 4 ohm. The voltage across the resistor is
4 V
A circuit consists of a resistor of 2 ohm in series with an inductor of 1 henry. The angular frequency of the AC source is 100 rad/s. The impedance of the circuit is
2.83 ohm
Test your knowledge of electricity concepts, including current, resistance, and circuits, at the IIT JEE Advanced Level for Class 12th students.
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