officerpath@gmail.com Hyderabad, Pakistan
Login Register
Latest Jobs CSS 2025 PMS CCE Sindh FPSC PPSC MCQs Past Papers Current Affairs Scholarships Admissions Downloads Roll No. Slips Results

Search within this topic and sort the MCQs below.

Sort

Practice questions from this topic.

Current flows in a circuit when
A. A switch is opened
B. A switch is closed
C. The switch is either open or closed
D. There is no voltage
Answer: B
Eighttenths coulomb passes a point in 4 s. The current in amperes is
A. 1.6 A
B. 16 A
C. 2 A
D. 0.2 A
Answer: D
The unit of electrical charge is the
A. Coulomb
B. Joule
C. Volt
D. Watt
Answer: A
The nominal value of a brown, black, yellow, and gold resistor is 100,000 ohms.
A. True
B. False
Answer: A
Electrons in the outer orbit are called
A. Nuclei
B. Valences
C. Waves
D. Shells
Answer: B
A voltmeter is connected across the current path.
A. True
B. False
Answer: A
An ammeter is connected across the current path.
A. True
B. False
Answer: B
When the current is 2.5 A, how many coulombs pass a point in 0.2 s?
A. 12.5 C
B. 1.25 C
C. 0.5 C
D. 5 C
Answer: C
A wiper is the sliding contact in a
A. Switch
B. Photoconductive cell
C. Thermistor
D. Potentiometer
Answer: D
A twoterminal variable resistor is known as a
A. Potentiometer
B. Thermistor
C. Rheostat
D. Wiper
Answer: C
A red, red, orange, gold resistor has a nominal value of
A. 22,000 Ω
B. 2,200 Ω
C. 22 Ω
D. 2.2 Ω
Answer: A
An ohmmeter is an instrument for measuring
A. Current
B. Voltage
C. Resistance
D. Wattage
Answer: C
The atomic number is the number of neutrons in the nucleus.
A. True
B. False
Answer: B
A free electron is a valence electron that has broken away from its parent atom.
A. True
B. False
Answer: A
A thermistor is a type of
A. Switch
B. Resistor
C. Battery
D. Power supply
Answer: B
Which of the following is not a type of energy source?
A. Generator
B. Rheostat
C. Solar cell
D. Battery
Answer: B
The maximum resistance value for a brown, red, yellow, gold resistor is
A. 126,000 Ω
B. 126,600 Ω
C. 114,000 Ω
D. 132,000 Ω
Answer: A
A neutral atom is one with an equal number of protons and electrons.
A. True
B. False
Answer: A
An open circuit is one that has a complete current path.
A. True
B. False
Answer: B
An ammeter is an electrical instrument used to measure
A. Current
B. Voltage
C. Resistance
D. None of the above
Answer: A