(B) For an ideal transformer,the input power is equal to the output power.Input power $P_{in} = E_{P} I_{P}$Output power $P_{out} = E_{S} I_{S} = 24 \

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(B) For an ideal transformer,the input power is equal to the output power.Input power $P_{in} = E_{P} I_{P}$Output power $P_{out} = E_{S} I_{S} = 24 \, W$Since $P_{in} = P_{out}$,we have $E_{P} I_{P} = 24 \, W$.Given $E_{P} = 240 \, V$,we can calculate the primary current $I_{P}$ as:$I_{P} = \frac{24 \, W}{240 \, V} = 0.1 \, A$.

Class 12 Physics Electromagnetic Induction Transformer

Easy

The output voltage of an ideal transformer,connected to a $240 \, V$ $a.c.$ mains,is $24 \, V$. When this transformer is used to light a bulb with rating $(24 \, V, 24 \, W)$,calculate the current in the primary coil of the circuit.

A
$0.3$
B
$0.1$
C
$0.8$
D
$1.02$

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Class 12

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Chapter

Electromagnetic Induction

Subtopic

Transformer

How much current is drawn by the primary coil of a transformer,which steps down $220 V$ to $55 V$ to operate a device with an impedance of $275 \Omega$ (in $A$)?

EasyTS EAMCET 2021

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An ideal transformer has $100$ turns in the primary and $250$ turns in the secondary. The peak value of the $ac$ input voltage is $28 \, V$. The r.m.s. secondary voltage is nearest to.....$V$

Medium

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Write important uses of transformer.

Medium

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In a transformer,$220 \ V$ $AC$ voltage is increased to $2200 \ V$. If the number of turns in the secondary coil is $2000$,then the number of turns in the primary coil will be:

Easy

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Using the equation of power for an ideal transformer,prove $\frac{I_p}{I_s} = \frac{V_s}{V_p} = \frac{N_s}{N_p}$.

Medium

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The output voltage of an ideal transformer,connected to a $240 \, V$ $a.c.$ mains,is $24 \, V$. When this transformer is used to light a bulb with rating $(24 \, V, 24 \, W)$,calculate the current in the primary coil of the circuit.

Similar Questions

How much current is drawn by the primary coil of a transformer,which steps down $220 V$ to $55 V$ to operate a device with an impedance of $275 \Omega$ (in $A$)?

An ideal transformer has $100$ turns in the primary and $250$ turns in the secondary. The peak value of the $ac$ input voltage is $28 \, V$. The r.m.s. secondary voltage is nearest to.....$V$

Write important uses of transformer.

In a transformer,$220 \ V$ $AC$ voltage is increased to $2200 \ V$. If the number of turns in the secondary coil is $2000$,then the number of turns in the primary coil will be:

Using the equation of power for an ideal transformer,prove $\frac{I_p}{I_s} = \frac{V_s}{V_p} = \frac{N_s}{N_p}$.

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