Suppose voltage V is applied across a resistance R. The power dissipated in the resistance is P. Now the same voltage V is applied across a parallel combination of three equal resistors each of resistance R. Then the power dissipated in the second case will be

Physics
Suppose voltage V is applied across a resistance R. The power dissipated in the resistance is P. Now the same voltage V is applied across a parallel combination of three equal resistors each of resistance R. Then the power dissipated in the second case will be

3P

P/3

2p/ 3

P

3P

P/3

2p/ 3

P

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Physics
A bullet is fired from a rifle which recoils after firing. The ratio of kinetic energy of the rifle to that of the bullet is

One

More than one

Less than one

Zero

One

More than one

Less than one

Zero

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Physics
A stone floor feels cold to the bare feet but a carpet on the same floor feels warm. This is because

The floor and carpet are at different temperatures

The human body maintains a constant temperature

The carpet is a better conductor of heat than the stone

The stone conveys the heat away from the feet more rapidly than the carpet

The floor and carpet are at different temperatures

The human body maintains a constant temperature

The carpet is a better conductor of heat than the stone

The stone conveys the heat away from the feet more rapidly than the carpet

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Physics
The rice is cooked more quickly in a pressure cooker because

None of these

It is covered.

Water boils at a higher temperature under pressure.

Less quantity of water is used.

None of these

It is covered.

Water boils at a higher temperature under pressure.

Less quantity of water is used.

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Physics
The velocity of falling rain drops attains a terminal value because of

Surface tension

Upward thrust due to air

Viscous force exerted by air

Air current

Surface tension

Upward thrust due to air

Viscous force exerted by air

Air current

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Physics
Clouds float in the atmosphere because of their

Low viscosity

Low temperature

Low pressure

Low density

Low viscosity

Low temperature

Low pressure

Low density

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Physics

Physics Suppose voltage V is applied across a resistance R. The power dissipated in the resistance is P. Now the same voltage V is applied across a parallel combination of three equal resistors each of resistance R. Then the power dissipated in the second case will be

Physics A bullet is fired from a rifle which recoils after firing. The ratio of kinetic energy of the rifle to that of the bullet is

Physics A stone floor feels cold to the bare feet but a carpet on the same floor feels warm. This is because

Physics The rice is cooked more quickly in a pressure cooker because

Physics The velocity of falling rain drops attains a terminal value because of

Physics Clouds float in the atmosphere because of their

Physics
Suppose voltage V is applied across a resistance R. The power dissipated in the resistance is P. Now the same voltage V is applied across a parallel combination of three equal resistors each of resistance R. Then the power dissipated in the second case will be

Physics
A bullet is fired from a rifle which recoils after firing. The ratio of kinetic energy of the rifle to that of the bullet is

Physics
A stone floor feels cold to the bare feet but a carpet on the same floor feels warm. This is because

Physics
The rice is cooked more quickly in a pressure cooker because

Physics
The velocity of falling rain drops attains a terminal value because of

Physics
Clouds float in the atmosphere because of their