Heat UPSC Questions

Physics

Heat MCQ Questions


7.
A Battery is a device that stores chemical energy and converts it to _______
A.
Electrical energy
B.
Ammeter
C.
Voltmeter
D.
Both (b) and (c)
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ANSWER :
A. Electrical energy
8.
In nature, free charged particles do exist like in upper strata of atmosphere called
A.
Ionosphere
B.
Mesosphere
C.
Troposphere
D.
Exosphere
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ANSWER :
A. Ionosphere
9.
The safety device based on the heating effect of electric current is
A.
Bulb
B.
Fuse
C.
Light
D.
None of the above
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ANSWER :
B. Fuse
10.
When current is switched on in a room heater, _______ is converted into _________
A.
Electric energy, heat energy
B.
Electric energy, Light energy
C.
Heat energy, Light energy
D.
Heat energy, electric energy
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ANSWER :
A. Electric energy, heat energy
11.
Which of the following is correct for the symbol of battery
(i) Longer line in the symbol of an electric cell represents positive terminal
(ii) Shorter line in the symbol of an electric cell represents negative terminal
A.
(i) only
B.
(ii) only
C.
both (i) and (ii)
D.
None of the above
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ANSWER :
C. both (i) and (ii)
12.
An electric charge will experience a force if an ______ is applied
A.
Electric Field
B.
Magnetic Field
C.
Both (a) & (b)
D.
None of the above
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ANSWER :
A. Electric Field