20th Oct Alternating Current Quiz 2 – Punjab Meritorious School Preparation Portal

Welcome to your 20th Oct Alternating Current Quiz 2 CBT TEST

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Name

Email

School Name with City

Phone Number

150V,2.2A

220V,2.2A

220V,2.0A

100V,2.0A

A small signal voltage V(t) = V0 sinωt is applied across an ideal capacitor C:

Current I(t), lags voltage V(t) by 90º.

Over a full cycle the capacitor C does not consume any energy from the voltage source.

Current I(t) is in phase with voltage V(t)

Current I(t) leads voltage V(t) by 180º

A transformer having efficiency of 90% is working on 200V and 3kW power supply. If the current in the secondary coil is 6A, the voltage across the secondary coil and the current in the primary coil respectively are:

300 V, 15A

450 V, 15A

450V, 13.5A

600V, 15A

0.51 W

0.67 W

0.76 W

0.89 W

The current (I) in the inductance is varying with time according to the plot shown in figure

The current (I) in the inductance is varying with time according to the plot shown in figure

The current (I) in the inductance is varying with time according to the plot shown in figure

The current (I) in the inductance is varying with time according to the plot shown in figure

The current (I) in the inductance is varying with time according to the plot shown in figure

A resistance ‘R’ draws power ‘P’ when connected to an AC source. If an inductance is now placed in series with the resistance, such that the impedance of the circuit becomes ‘Z’, the power drawn will be

A resistance ‘R’ draws power ‘P’ when connected to an AC source. If an inductance is now placed in series with the resistance, such that the impedance of the circuit becomes ‘Z’, the power drawn will be

A resistance ‘R’ draws power ‘P’ when connected to an AC source. If an inductance is now placed in series with the resistance, such that the impedance of the circuit becomes ‘Z’, the power drawn will be

A resistance ‘R’ draws power ‘P’ when connected to an AC source. If an inductance is now placed in series with the resistance, such that the impedance of the circuit becomes ‘Z’, the power drawn will be

A resistance ‘R’ draws power ‘P’ when connected to an AC source. If an inductance is now placed in series with the resistance, such that the impedance of the circuit becomes ‘Z’, the power drawn will be

0.2 A

2 A

0

2 mA

10mA

100mA

200mA

20mA

In an A.C circuit with voltage V and Current I the power dissipated is

In an A.C circuit with voltage V and Current I the power dissipated is

In an A.C circuit with voltage V and Current I the power dissipated is

In an A.C circuit with voltage V and Current I the power dissipated is

In an A.C circuit with voltage V and Current I the power dissipated is

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