ELECTRIC CIRCUITS QUIZ

When AC flows through a pure capacitance then the current

is in phase with emf.

leads the emf by 90o.

leads the emf by - 90o.

lags the emf by 90o.

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YOUR ANSWER : ?

Rms value is defined based on which of the following?

Current

Charge transfer

Voltage

Heating effect

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In RL series circuit R=2Ω and L=2mH. What is the value of time constant?

4msec

1msec

2msec

100sec

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Among the options which metal has the highest electrical conductivity?

Aluminium.

Steel.

Stranded aluminium.

Copper.

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In 2 port network Z12 = Z21 indicates which property

linear.

unilateral.

non linear.

bilateral.

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Given network is having N nodes and B branches, then number of twigs are

N.

N - 1.

B - N + 1.

B - N - 1.

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A certain network consists of large number of ideal linear resistances, one of which is designated as R and two constant ideal source. The power consumed by R is P1 when only the first source is active and P2 when only second source is active. In both sources are active simultaneously then the power consumed by R is

(P1 ± P2 )2.

P1 ± P2 .

√P1 ± √P2.

(√P1 ± √P2)2.

TRUE ANSWER : ?
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From the circuit diagram shown in question 1 find the maximum power transferred to the load.

9 W.

15.247 W.

4.547 W.

1.875 W.

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The greater the internal resistance of a cell

the greater the emf.

the greater the terminal voltage.

the lesser the emf.

the lesser the terminal voltage.

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Which of the following is the correct relation?

AD-BC = 1.

all of these.

AC-BD = 1.

AB-CD = 1 .

TRUE ANSWER : ?
YOUR ANSWER : ?

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