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Quarter 3

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Question 1 of 20 0% read

1. Which appliance uses maximum power?

A Electric bulb
B Electric iron
C Electric bell
D Radio

2. The SI unit of resistance is:

A Ampere
B Volt
C Ohm
D Watt

3. Direct current (DC) flows in:

A Both directions alternately
B One direction only
C Random directions
D Circular paths only

4. A galvanometer can detect:

A Only AC
B Only DC
C Small currents
D High voltages

5. Which component is used to control the flow of electric current in a circuit?

A Switch
B Resistor
C Battery
D Bulb

6. EMF of a cell is measured when the circuit is:

A Closed
B Open
C Short
D Overloaded

7. In electronics, biasing means:

A Breaking the circuit
B Applying voltage
C Removing current
D Short circuiting

8. Quantum computers are expected to be very powerful in:

A Simple calculations
B Complex problem solving
C Word processing
D Printing

9. Which instrument is most sensitive for detecting small currents?

A Ammeter
B Voltmeter
C Galvanometer
D Ohmmeter

10. Another universal logic gate is:

A NOR
B AND
C OR
D XOR

11. Which logic gate gives output 1 only when both inputs are 1?

A OR
B NOT
C AND
D NOR

12. Which of the following is a source of DC?

A AC generator
B Battery
C Alternator
D Transformer

13. Ohm’s Law states that current through a conductor is directly proportional to:

A Resistance
B Voltage
C Power
D Charge

14. Which graph represents Ohm’s law?

A Current vs Resistance
B Voltage vs Resistance
C Current vs Voltage
D Power vs Voltage

15. Which electronics branch deals with continuous signals?

A Digital electronics
B Quantum electronics
C Analogue electronics
D Power electronics

16. The basic unit of information in quantum computing is:

A Bit
B Qubit
C Byte
D Gate

17. Electric energy consumed is usually measured in:

A Joule
B Watt
C Kilowatt-hour
D Volt

18. Which safety device automatically breaks the circuit during overload?

A Switch
B MCB
C Plug
D Socket

19. The main advantage of AC over DC is that it can be:

A Stored easily
B Transmitted over long distances easily
C Produced only by batteries
D Measured easily

20. Which of the following is NOT a circuit element?

A Resistor
B Cell
C Wire
D Magnet

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