A potentiometer wire is 100 cm long and a constant potential difference is maintained across it. Two cells are connected in series first to support one another and then in opposite direction. The balance points are obtained at 50 cm and 10 cm from the positive end of the wire in the two cases. The ratio of the emf's is :

Physics
A potentiometer wire is 100 cm long and a constant potential difference is maintained across it. Two cells are connected in series first to support one another and then in opposite direction. The balance points are obtained at 50 cm and 10 cm from the positive end of the wire in the two cases. The ratio of the emf's is :

0.12638888888889

0.21111111111111

0.12777777777778

0.20902777777778

0.12638888888889

0.21111111111111

0.12777777777778

0.20902777777778

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Physics
Skids occur when the brakes are applied so hard that the front or rear wheels lose traction are called as

Braking

Cornering

Power

Blowout

Braking

Cornering

Power

Blowout

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Physics
An aeroplane is flying horizontally with a velocity of 600 km/h and at a height of 1960 m. When it is vertically at a point A on the ground a bomb is released from it. The bomb strikes the ground at point B. The distance AB is

0.33 km

3.33 km

33 km

1200 m

0.33 km

3.33 km

33 km

1200 m

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Physics
When number of turns in a coil is trippled, without any change in the length of coil, its self inductance becomes?

Six times

Three times

One–third

Nine times

Six times

Three times

One–third

Nine times

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Physics
A galvanometer can be converted to a voltmeter by connecting

A high resistance in parallel

A high resistance in series

A low resistance in series

A low resistance in parallel

A high resistance in parallel

A high resistance in series

A low resistance in series

A low resistance in parallel

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Physics
Scalar Quantities are

Physical quantities which have magnitude only and direction

Physical quantities which have no magnitude only and only direction

Physical quantities which have magnitude only and no direction

Physical quantities which have no magnitude and no direction

Physical quantities which have magnitude only and direction

Physical quantities which have no magnitude only and only direction

Physical quantities which have magnitude only and no direction

Physical quantities which have no magnitude and no direction

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Physics

Physics Skids occur when the brakes are applied so hard that the front or rear wheels lose traction are called as

Physics An aeroplane is flying horizontally with a velocity of 600 km/h and at a height of 1960 m. When it is vertically at a point A on the ground a bomb is released from it. The bomb strikes the ground at point B. The distance AB is

Physics When number of turns in a coil is trippled, without any change in the length of coil, its self inductance becomes?

Physics A galvanometer can be converted to a voltmeter by connecting

Physics Scalar Quantities are

Physics
Skids occur when the brakes are applied so hard that the front or rear wheels lose traction are called as

Physics
An aeroplane is flying horizontally with a velocity of 600 km/h and at a height of 1960 m. When it is vertically at a point A on the ground a bomb is released from it. The bomb strikes the ground at point B. The distance AB is

Physics
When number of turns in a coil is trippled, without any change in the length of coil, its self inductance becomes?

Physics
A galvanometer can be converted to a voltmeter by connecting

Physics
Scalar Quantities are