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Physics

Physics
Electric current is measured by which instrument?

Sinometer
Barometer
Ammeter
Voltmeter

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Physics
Increased wind speed is accompanied by a reduced air ________

Density
Pressure
Aridity
Humidity

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Physics
The device which transfer the signal from low resistance region to high resistance region is

Transistor
Inductor
Diode
Capacitor

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Physics
A person lifts luggage of 20 kg from the ground and puts it on his head 2m above the ground. Calculate the work done by him. (g = 10 )

200J
40J
400J
20 J

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Physics
In a particular system, the units of length, mass and time are chosen to be 10 cm, 10 g and 0.1 s respectively. The unit of force in this system will be equivalent to

10 N
100 N
1 N
0.1 N

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Physics
What happens to a liquid, when the vapour pressure equals the atmospheric pressure?

No change
The liquid cools
The liquid boils
The liquid evaporates

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