Resistor Quiz | Resistor Objective Type Questions and Answers

Questions
21 If I3 = 100 µA, R3 = 50 MΩ, then V3 = __:
A 5000 V
B 500 V
C 5 V
D 0.5 V

Answer: 5000 V
22 If I2 = 100 µA, R2 = 50 kΩ, then V2 = __:
A 5000 V
B 500 V
C 5 V
D 0.5 V

Answer: 5 V
23 If I1 = 50 mA, R1 = 50 kΩ, then V1 = __:
A 1 kV
B 2.5 kV
C 5 kV
D 10 kV

Answer: 2.5 kV
24 An unknown resistor has 5 mA current flowing through it when 10 volts are applied to it. For the same resistor, the application of 20 volts will result in the current flow of:
A 2 mA
B 5 mA
C 10 mA
D 50 mA

Answer: 10 mA
25 An electrical bulb draws 5 A current when connected to a 100-V wall outlet, the resistance of bulb is:
A 5 Ω
B 20 Ω
C 100 Ω
D 500 Ω

Answer: 20 Ω
26 The potential difference across a 5 kΩ is 12 V. Find the current flowing through the resistor:
A 60 mA
B 2.4 mA
C 1.77 mA
D 0.998 mA

Answer: 2.4 mA
27 The water heating rod draws 10 A current when connected to certain power source. The resistance of rod is 12 Ω. The source voltage is:
A 1.2 V
B 120 V
C 1200 V
D None of these

Answer: 120 V
28 An electric kettle with 50-Ω heat element is powered by a 230-V wall outlet. The current flowing through kettle is:
A 0.217 A
B 4.6 A
C 10.86 A
D 11500 A

Answer: 4.6 A
29 Components which obey Ohm’s law are known as:
A Resistors
B Ohmic components
C Non-ohmic components
D None of these

Answer: Ohmic components
30 Ohmic components have a __________ V-I curve:
A Straight line VI curve
B Parabolic VI curve
C Non-linear VI curve
D Sinusoidal VI curve

Answer: Straight line VI curve
31 Unit of resistance is:
A Volt
B Watt
C Ohms
D Ampere

Answer: Ohms
32 Unit of power is:
A Volt
B Watt
C Coulomb
D Ampere

Answer: Watt
33 Unit of current is:
A Volt
B Watt
C Coulomb
D Ampere

Answer: Ampere
34 Unit of voltage is:
A Volt
B Watt
C Coulomb
D Ampere

Answer: Volt
35 If V = 50 V and I = 5 A, then R = ___:
A 50 Ω
B 5 Ω
C 10 Ω
D 2 Ω

Answer: 10 Ω
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