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The Solenoid And Toroid Free Doubts and Solutions

CBSE - XII Science - Physics - Moving Charges and Magnetism

What is the force on a wire of legth 10 cm carrying a current of 5A placed at the centre of solenoid making an anglee of 45 degrees with its axis,if the solenoid produces a field of 0.5T? 

Asked by Tanya raj 21st August 2015, 8:13 PM
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CBSE - XII Science - Physics - Moving Charges and Magnetism

An electron is moving with a velocity v, along the axis of a long straight solenoid, carrying a current. What will be the force acting on the electron due to the magnetic field of the solenoid ?

Asked by Topperlearning User 20th May 2015, 2:53 PM
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CBSE - XII Science - Physics - Moving Charges and Magnetism

What is the length of a solenoid with total number of turns 1000, area of cross section 20 cm2 and self inductance of 4.02 × 10-3 H.

Asked by Topperlearning User 20th May 2015, 1:20 PM
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CBSE - XII Science - Physics - Moving Charges and Magnetism

A toroid coil has 1000 turns and diameter of 30 cm with the area of cross section of 2 cm2. Calculate i) inductance of coil ii) induced e.m.f when the a current of 2 A is reversed in 0.03 secs.

Asked by Topperlearning User 20th May 2015, 12:59 PM
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CBSE - XII Science - Physics - Moving Charges and Magnetism

If the current of 8 A in the primary circuit is reduced to 0 at a uniform rate in 10-2 secs. What is the induced e.m.f when the coefficient of mutual inductance is 4H?

Asked by Topperlearning User 20th May 2015, 10:44 AM
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CBSE - XII Science - Physics - Moving Charges and Magnetism

What is the unit of Self Inductance? Define.

Asked by Topperlearning User 20th May 2015, 10:41 AM
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CBSE - XII Science - Physics - Moving Charges and Magnetism

On what factors does the coefficient of mutual induction depends?

Asked by Topperlearning User 20th May 2015, 10:40 AM
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CBSE - XII Science - Physics - Moving Charges and Magnetism

In a system of two long solenoids a 1.5 m long solenoid with diameter of 6 cm and 1500 turns has a secondary of 1000 turns wound near its mid point. Calculate the mutual inductance.

Asked by Topperlearning User 20th May 2015, 10:40 AM
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CBSE - XII Science - Physics - Moving Charges and Magnetism

What is mutual induction?

Asked by Topperlearning User 20th May 2015, 10:24 AM
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CBSE - XII Science - Physics - Moving Charges and Magnetism

Derive the formula for self inductance of a solenoid ?

Asked by Topperlearning User 20th May 2015, 10:23 AM
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CBSE - XII Science - Physics - Moving Charges and Magnetism

What is self inductance ?

Asked by Topperlearning User 20th May 2015, 10:22 AM
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CBSE - XII Science - Physics - Moving Charges and Magnetism

Using Amperes Circuital law, derive an expression for the magnetic feild along the axis of toroidal solinoid.

Asked by Ayush 2nd February 2015, 8:09 AM
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