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On a circular path of radius 9 cm in air around a solenoid with increasing magnetic field, the emf is 28 volts. A wire with resistance 7 ohms is placed along the path. What is the current in the wire

Respuesta :

Answer:

Current in the wire, I = 4 A

Explanation:

It is given that,

Radius of the circular path, r = 9 cm = 0.09 m

EMF of the solenoid, E = 28 volts

Resistance of the wire, R = 7 ohms

We need to find the current in the wire. It can be calculated using the Ohm's law. Its mathematical relation is given by :

[tex]E=IR[/tex]

[tex]I=\dfrac{E}{R}[/tex]

[tex]I=\dfrac{28\ V}{7\ \Omega}[/tex]

I = 4 A

So, the current in the wire is 4 A. Hence, this is the required solution.

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