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- 1. Multiple Choice
Which mark is necessary on electric appliances?
AGMARK
ISI
FICCI
KSK
- 2. Multiple Choice
If a positive terminal of one cell is connected to the negative terminal of the next cell it is known as
Electric current
Fuse
Battery
Element
- 3. Multiple Choice
Which of these following cannot be harmed by electric current
Plastic
Rubber
A & B
All of the above
- 4. Multiple Choice
Refer the diagram. A wire carries a current, creating a magnetic field around itself as shown. The current in the wire is:
Directed to the right
Directed to the left
Equal to the magnetic field
n the same direction as the magnetic field
- 5. Multiple Choice
An Electric charge in a uniform motion produces
An Electric Field only
An Magnetic field only
Both Electric Field & Magnetic field
Neither of them
- 6. Multiple Choice
A wire is parallel to the lines of the force of the magnetic field and the current flows in the wire. Then
The wire will experience a force along the direction of the magnetic field
The wire will not experience any force
The wire will experience the torque
The wire will experience a perpendicular force
- 7. Multiple Choice
Who was the first to observe the magnetic effect of electric current?
Faraday
Oersted
Volta
Ampere
- 8. Multiple Choice
Identify the poles of the magnet in the given figure.
NORTH
SOUTH
One is north and the other is south
Can't predict
- 9. Multiple Choice
Which of the following diagrams correctly shows the magnetic field produced by a current- carrying wire?
A
B
C
D
- 10. Multiple Choice
A device used to measure the amount of electric current flowing through a circuit.
Ammeter
Voltmeter
Resistor
Battery
- 11. Multiple Choice
Current flows through the circuit when the circuit is in the _________________condition.
Broken
Open
Closed
Incomplete
- 12. Multiple Choice
The magnetic field around a current carrying coil
Lasts for three hours
Lasts as long as current flows through it
Lasts till its half-life period
Is permanent
- 13. Multiple Choice
A fuse wire is made up of alloy
Nichrome
Tin-lead
Manganin
Constantan
- 14. Multiple Choice
Copper wires are used as connecting wires because
Copper has very high melting point
Copper wires are very thick wires
Copper wires offer a lower resistance
None of these
- 15. Multiple Choice
The device used to make or break an electric circuit is
Resistor
Battery
Switch
Ammeter
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