The Voltage Divider and Current Divider Circuits MCQ’s

Electric Circuits Electronics & Communication Engineering

This set of Electric Circuits Multiple Choice Questions & Answers (MCQs) focuses on “The Voltage Divider and Current Divider Circuits”.

1. Where current division problem arises
a) Series connected resistors
b) Parallel connected resistors
c) When resistors are equal
d) Both series and parallel resistors.

2. If there are 3 Resistors R1, R2 and R3 in series and V is total voltage and I is total current then Voltage across R2 is
a) V R3/ R1 + R2 + R3
b) V R2/ R1 + R2 + R3
c) V R1/R1 + R2 + R3
d) V

3. Where voltage division problem arises
a) Series connected resistors
b) Parallel connected resistors
c) When resistors are equal
d) Both series and parallel resistors.

4.

electric-circuits-questions-answers-freshers-q4

Calculate Voltage across 2Ω Resistor where supply v= 10volts.
a) 2V
b) 3V
c) 10V
d) 4V

5. For a parallel connected resistor R1, R2 and a voltage of V volts. Current across the first resistor is given by
a) I R1
b) I R2
c) I R1 / R1 + R2
d) I R2 / R1 + R2

6. R1 = 1Ω, R2 = 3Ω, R3 = 5Ω and R4 = 7Ω connected in parallel. Total Current = 23A. Then V, I1 , I2 =?
a) 12.26v, 1.725, 2.875
b) 12.23v, 2.875, 1.725
c) 11.26v, 1.95, 1.74
d) 11.23v, 1.74, 1.95

7. R1 = 1Ω, R2 = 3Ω, R3 = 5Ω and R4 = 7Ω connected in series. Total voltage = 20V, Current I, V2 =?
a) I = 1.23, V2 = 3.75
b) I = 1.25, V2 = 3.75
c) I = 1.15, V2= 3.73
d) I = 1.16, V2 = 3.72

8.

electric-circuits-questions-answers-freshers-q5

Calculate i =?
a) -1A
b) +2A
c) 8A
d) -5A

9. Voltage division is necessary for parallel resistance networks
a) True
b) False

10. Why is current division necessary?
a) In series current is the same
b) In parallel current differs
c) Because the voltage is also different
d) Because of Kirchhoff’s laws.

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