In the adjoining ac circuit the voltmeter whose reading will be zero at resonance is

(1) *V*_{1}

(2) *V*_{2}

(3) *V*_{3}

(4) *V*_{4}

To view Explanation, Please buy any of the course from below.

High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

In the adjoining figure, the impedance of the circuit will be:

(1) 120 *ohm*

(2) 50 *ohm *

(3) 60 *ohm *

(4) 90 *ohm*

Concept Questions :-

Different types of AC Circuits

To view Explanation, Please buy any of the course from below.

High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

Which one of the following curves represents the variation of impedance (*Z*) with frequency *f *in series *LCR* circuit

(1)

(2)

(3)

(4)

To view Explanation, Please buy any of the course from below.

High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

The variation of the instantaneous current (*I*) and the instantaneous emf (*E*) in a circuit is as shown in fig. Which of the following statements is correct

(1) The voltage lags behind the current by *π* / 2

(2) The voltage leads the current by *π* / 2

(3) The voltage and the current are in phase

(4) The voltage leads the current by *π*

To view Explanation, Please buy any of the course from below.

High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

The figure shows the variation of *R*, *X _{L,}* and

(1) *A*

(2) *B*

(3) *C*

(4) All points

Concept Questions :-

Different types of AC Circuits

To view Explanation, Please buy any of the course from below.

High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

An ac source of variable frequency *f* is connected to an *LCR* series circuit. Which one of the graphs in the figure represents the variation of the current I in the circuit with frequency f* :*

(1)

(2)

(3)

(4)

Concept Questions :-

Different types of AC Circuits

To view Explanation, Please buy any of the course from below.

High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

A constant voltage at different frequencies is applied across a capacitance *C* as shown in the figure. Which of the following graphs

Correctly depicts the variation of current with frequency?

(1)

(2)

(3)

(4)

To view Explanation, Please buy any of the course from below.

High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

The output current versus time curve of a rectifier is shown in the figure. The average value of output current in this case is

(1) 0

(2) $\frac{{I}_{0}}{2}$

(3) $\frac{2{I}_{0}}{\pi}$

(4) *I*_{0}

To view Explanation, Please buy any of the course from below.

High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

The current '*i*' in an inductance coil varies with time '*t*' according to the following graph.

Which one of the following plots shows the variations of voltage in the coil?

(1)

(2)

(3)

(4)

Concept Questions :-

Rms and average values

To view Explanation, Please buy any of the course from below.

High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

When an ac source of e.m.f. $e={E}_{0}\mathrm{sin}\left(100\text{\hspace{0.17em}}t\right)$ is connected across a circuit, the phase difference between the e.m.f. *e* and the current *i* in the circuit is observed to be &pi:/4, as shown in the diagram. If the circuit consists possibly only of *RC* or *LC* in series, find the relationship between the two elements

(1) $R=1k\Omega ,\text{\hspace{0.17em}}C=10\mu F$

(2) $R=1k\Omega ,\text{\hspace{0.17em}}C=1\mu F$

(3) $R=1k\Omega ,\text{\hspace{0.17em}}L=10H$

(4) $R=1k\Omega ,\text{\hspace{0.17em}}L=1H$

Concept Questions :-

Different types of AC Circuits

To view Explanation, Please buy any of the course from below.

High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level: