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Physics-

General

Easy

Question

The device that does not work on the principle of mutual induction is

Induction coil
Motor
Tesla coil
Transformer

The correct answer is: Tesla coil

Related Questions to study

A transformer is employed to

A transformer is employed to

Physics-General

A solenoid is $1.5 blank m$ long and its inner diameter is $4.0 blank c m$ . It has three layers of windings of 1000 turns each and carries a current of $2.0 blank a m p e r e s$ . The magnetic flux for a cross-section of the solenoid is nearly

A solenoid is $1.5 blank m$ long and its inner diameter is $4.0 blank c m$ . It has three layers of windings of 1000 turns each and carries a current of $2.0 blank a m p e r e s$ . The magnetic flux for a cross-section of the solenoid is nearly

Physics-General

The current through a $4.6 blank H$ inductor is shown in the following graph. The induced emf during the time interval $t equals 5 blank m i l l i minus s e c$ to $6 blank m i l l i minus s e c$ will be

The current through a $4.6 blank H$ inductor is shown in the following graph. The induced emf during the time interval $t equals 5 blank m i l l i minus s e c$ to $6 blank m i l l i minus s e c$ will be
Physics-General

parallel

An e.m.f. of $12 blank v o l t$ is produced in a coil when the current in it changes at the rate of $45 blank a m p divided by m i n u t e$ . The inductance of the coil is

An e.m.f. of $12 blank v o l t$ is produced in a coil when the current in it changes at the rate of $45 blank a m p divided by m i n u t e$ . The inductance of the coil is

Physics-General

In a coil when current changes from 10A to 2A in time 0.1s, induced emf is 3.28 V. what is self –inductance of coil?

In a coil when current changes from 10A to 2A in time 0.1s, induced emf is 3.28 V. what is self –inductance of coil?

Physics-General

What is increased in step-down transformer

What is increased in step-down transformer

Physics-General

parallel

Fleming’s left and right hand rule are used in

Fleming’s left and right hand rule are used in

Physics-General

There are two solenoids of same length and inductance L but their diameters differ to the extent that one can just fit into the other. They are connected in three different ways in series. (1) They are connected in series but separated by large distance, (2) they are connected in series with one inside the other and senses of the turns coinciding, (3) both are connected in series with one inside the other with senses of the turns opposite as depicted in figures 1, 2 and 3 respectively. The total inductance of the solenoids in each of the case 1, 2 and 3 are respectively

There are two solenoids of same length and inductance L but their diameters differ to the extent that one can just fit into the other. They are connected in three different ways in series. (1) They are connected in series but separated by large distance, (2) they are connected in series with one inside the other and senses of the turns coinciding, (3) both are connected in series with one inside the other with senses of the turns opposite as depicted in figures 1, 2 and 3 respectively. The total inductance of the solenoids in each of the case 1, 2 and 3 are respectively
Physics-General

The two tangents to the curve $a x to the power of 2 end exponent plus 2 h x y plus b y to the power of 2 end exponent equals 1 comma blank a greater than 0$ at the points where it crosses $x$ -axis, are

The two tangents to the curve $a x to the power of 2 end exponent plus 2 h x y plus b y to the power of 2 end exponent equals 1 comma blank a greater than 0$ at the points where it crosses $x$ -axis, are

parallel

A circular metal plate is heated so that its radius increases at a rate of 0.1 mm per minute. Then the rate at which the plate’s area is increasing when the radius is 50 cm is

A circular metal plate is heated so that its radius increases at a rate of 0.1 mm per minute. Then the rate at which the plate’s area is increasing when the radius is 50 cm is

Any tangent to the curve $y equals 2 x to the power of 5 end exponent plus 4 x to the power of 3 end exponent plus 7 x plus 9$

Any tangent to the curve $y equals 2 x to the power of 5 end exponent plus 4 x to the power of 3 end exponent plus 7 x plus 9$

If $S T$ and $S N$ are the lengths of the subtangent and the subnormal at the point $theta equals fraction numerator pi over denominator 2 end fraction$ on the curve $x equals a open parentheses theta plus sin invisible function application theta close parentheses comma blank y equals a open parentheses 1 minus cos invisible function application theta close parentheses comma blank a not equal to 1$ , then

If $S T$ and $S N$ are the lengths of the subtangent and the subnormal at the point $theta equals fraction numerator pi over denominator 2 end fraction$ on the curve $x equals a open parentheses theta plus sin invisible function application theta close parentheses comma blank y equals a open parentheses 1 minus cos invisible function application theta close parentheses comma blank a not equal to 1$ , then

parallel

The tangent to the curve $y equals x to the power of 3 end exponent minus 6 x to the power of 2 end exponent plus 9 x plus 4 comma blank 0 less or equal than x less or equal than 5$ has maximum slope at $x$ which is equal to

The tangent to the curve $y equals x to the power of 3 end exponent minus 6 x to the power of 2 end exponent plus 9 x plus 4 comma blank 0 less or equal than x less or equal than 5$ has maximum slope at $x$ which is equal to

The line $left parenthesis x divided by a right parenthesis plus left parenthesis y divided by b right parenthesis equals 2$ , touches the curve $fraction numerator x to the power of n end exponent over denominator a to the power of n end exponent end fraction plus fraction numerator y to the power of n end exponent over denominator b to the power of n end exponent end fraction equals 2$ , at

The line $left parenthesis x divided by a right parenthesis plus left parenthesis y divided by b right parenthesis equals 2$ , touches the curve $fraction numerator x to the power of n end exponent over denominator a to the power of n end exponent end fraction plus fraction numerator y to the power of n end exponent over denominator b to the power of n end exponent end fraction equals 2$ , at

The length of the subtangent to the curve $x to the power of 2 end exponent plus x y plus y to the power of 2 end exponent equals 7$ at $left parenthesis 1 comma blank minus 3 right parenthesis$ is

The length of the subtangent to the curve $x to the power of 2 end exponent plus x y plus y to the power of 2 end exponent equals 7$ at $left parenthesis 1 comma blank minus 3 right parenthesis$ is

parallel

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