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The overhead power line is considered as an infinite length wire so use the formula to find the magnetic field at a point due to infinite length wire. The overhead power line is considered as an infinite length wire so use the formula to find the magnetic field at a point due to infinite length [...]

A circular coil of wire consisting of 100 turns, each of radius 8.0 cm carries a current of 0.40 A. What is the magnitude of the magnetic field B at the centre of the coil ? A circular coil of wire consisting of 100 turns each of radius 8.0 cm carries a current of 0.40 [...]

A long straight wire carries a current of 35 A. What is the magnitude of the field B at a point 20 cm from the wire? A long straight wire carries a current of 35 A. What is the magnitude of the field B at a point 20 cm from the wire? November 26, 2021 [...]

A galvanometer having internal resistance 10Ω requires 0.01 A for a full scale deflection. To convert this galvanometer to a voltmeter of full-scale deflection at 120 V, we need to connect a resistance of A galvanometer having internal resistance 10Ω requires 0.01 A for a full scale deflection. To convert this galvanometer to a voltmeter [...]

What is the value of shunt resistance required to convert a galvanometer of resistance 100 Ω into an ammeter of range 1 A ? Given : Full scale deflection of the galvanometer is 5 mA What is the value of shunt resistance required to convert a galvanometer of resistance 100 Ω into an ammeter of [...]

The resistance of a galvanometer is 2.5Ω and it requires 50mA for full scale deflection. The value of shunt resistance required to convert it into an ammeter of range 0 to 5 A is The resistance of a galvanometer is 2.5Ω and it requires 50mA for full scale deflection. The value of shunt resistance required [...]

The range of voltmeter of resistance 300Ω is 5V. The resistance to be connected to convert it into an ammeter of range 5A is The range of voltmeter of resistance 300Ω is 5V. The resistance to be connected to convert it into an ammeter of range 5A is November 26, 2021 Category: Chapter 4 - [...]

A 10 A ammeter has a resistance of 0.09 Ω. What resistance of the shunt will enable it to read up to 100 A? A 10 A ammeter has a resistance of 0.09 Ω. What resistance of the shunt will enable it to read up to 100 A? November 26, 2021 Category: Chapter 4 - [...]

A circular coil of diameter 7 cm has 24 turns of wire carrying current of 0.75 A. The magnetic moment of the coil is A circular coil of diameter 7 cm has 24 turns of wire carrying current of 0.75 A. The magnetic moment of the coil is November 26, 2021 Category: Chapter 4 - [...]

A current carrying loop is free to turn in a uniform magnetic field. The loop will then come into equilibrium when its plane is inclined at. A current carrying loop is free to turn in a uniform magnetic field. The loop will then come into equilibrium when its plane is inclined at. November 26, 2021 [...]