Electrical Circuits MCQs
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Which of the following is not considered a physical factor affecting resistance?
- A. Length
- B. Material type
- C. Temperature
- D. Cross-sectional
- Correct Answer: Option C
Which of the following does not affect resistance?
- A. Resistivity
- B. Cross-sectional area
- C. Mass
- D. Length
- Correct Answer: Option C
The reason why electrical appliances are connected in parallel.
- A. It is a simple circuit
- B. This makes the operation of appliances independent with each other
- C. This results in reduced power consumption
- D. All of the above
- Correct Answer: Option B
What determines the direction of induced emf in a conductor or coil?
- A. Cork screw rule
- B. Fleming's left hand rule
- C. Ampere's circuital law
- D. Fleming's right hand rule
- Correct Answer: Option D
Loop currents should be assumed to flow in which direction
- A. Straight
- B. Clockwise
- C. Counter-clockwise
- D. Either B or C arbitrarily selected
- Correct Answer: Option D
The impedance in the study of electronics is represented by resistance and
- A. Inductance
- B. Capacitance
- C. Inductance and capacitance
- D. Reactance
- Correct Answer: Option D
Permeability is otherwise known as
- A. Magnetic conductivity
- B. Magnetic susceptibility
- C. Electric conductivity
- D. Electric susceptibility
- Correct Answer: Option A
Points to be considered in choosing a capacitor
- A. Working voltage
- B. Type of dielectric
- C. Capacitance
- D. All of these
- Correct Answer: Option D
Effects of capacitance
- A. It opposes any change in the amount of voltage
- B. Voltage is lagged behind the current by a quarter cycle
- C. Electric energy is stored in the capacitor in the form of electrostatic field
- D. All of these
- Correct Answer: Option D
What is the peak factor of a triangular wave?
- A. 1.16
- B. 1.73
- C. 1.41
- D. 1.11
- Correct Answer: Option B