DFCCIL EE Circuit Theory Quiz 2

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Question 1

In mesh analysis circuit shown, a current source is located where mesh current has current source which is equal to the current source i.e. I₂ = I_s What will be an expression for current I₁?

• AV_s - I_sR₂ / R₁ + R₂
• BV_s + I_sR₂ / 2R₁ + R₂
• CV_s - I_sR₂ / R₁ x R₂
• DV_s - I_sR₂ x 2R₁ + R₂

Question 2

The Kirchhoff’s current law is based on

• ALaw of conservation of power
• BLaw of conservation of energy
• CLaw of conservation of charge
• DOhm’s law

Question 3

Nodal Analysis is applicable on:
i. Kirchhoff Voltage law
ii. Ohm's Law
iii. Kirchhoff Current law
iv. Superposition

• Aboth i and ii
• Bboth ii and iii
• Cboth iii and iv
• Dboth i and iv

Question 4

The voltage across a load is V(t) = 20 cos(ωt - 20^o) volts and the current through the load is i(t) = cos (ωt + 10^o)A. The complex power in the load is

• A10∠-10^o VA
• B10∠-30^o VA
• C20∠-10^o VA
• D20∠-30^o VA

Question 5

Kirchhoff’s current law is applicable to
1) Closed loops in a circuit
2) Junction in a circuit
3) Magnetic circuits
Which of the above is/are correct?

• A1 only
• B2 only
• C3 only
• D1, 2 and 3

Question 6

What is the potential drop across 80 ohm the resistor in the figure?

• A20 V
• B15 V
• C10 V
• D5 V

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