Phasor diagram for a circuit is given below. The circuit is-

 

 

1. Purely capacitive circuit

2. Purely inductive circuit

3. Purely resistive circuit

4. RC circuit

Graph given below shows variation of voltage, current and flux for a magnetisation-demagnetisation cycle for an inductor. One of the correct conclusion out of the graph below can be:

1. Voltage leads current

2. Current leads voltage

3. Voltage and current are in phase

4. Sometimes current leads sometimes voltage leads

Phasor diagram given below represents which circuit?

1. Purely capacitive circuit

2. Purely inductive circuit

3. Purely resistive circuit

4. RC circuit

Graph given below shows variation of voltage, current and charge for a charging-discharging cycle for a capacitor. Then -

1. Voltage leads current

2. Current leads voltage

3. Voltage and current are in phase

4. Sometimes current leads sometimes voltage leads

The phasor diagram given below represents a series LCR  circuit. The circuit is predominantly-

1. Capacitive

2. Inductive

3. Resistive

4. All of the above

In the phasor diagram given below,  phase difference between current and voltage, $\varphi \ne \frac{\mathrm{\pi }}{2}$. Then the circuit is-

1. Purely capacitive circuit

2. Purely inductive circuit

3. Purely resistive circuit

4. LCR circuit

Figure shows the variation of peak current i_m with angular frequency $\omega$ for a LCR series circuit for different values of resistor R. Then the resonant frequency is-

1. $\frac{1\times {10}^6}{2\mathrm{\pi }}$

2. $\frac{2\times {10}^6}{2\mathrm{\pi }}$

3. $\frac{3\times {10}^6}{2\mathrm{\pi }}$

4. $\frac{4\times {10}^6}{2\mathrm{\pi }}$

The graph given below shows the variation of voltage and current with phase for an AC circuit. The circuit is:

1. Purely capacitive circuit

2. Purely inductive circuit

3. Purely resistive circuit

4. RC circuit

Graph given below shows variation of voltage and current with phase for an AC circuit. Then the circuit is predominantly-

1. Capacitive

2. Inductive

3. Resistive

4. All of the above

Graph given below shows variation of voltage and current with phase for an AC circuit. What is the phase difference between current(i) and voltage(v)?

1. 0

2. $\frac{\mathrm{\pi }}{6}$

3. $\frac{\mathrm{\pi }}{4}$

4. $\frac{\mathrm{\pi }}{2}$