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heres the question:

A 110 turn coil has a radius of 4.1 cm and a resistance of 25 Ohm. The coil is in a uniform magnetic field that is perpendicular to the plane of the coil. What rate of change of the magnetic field strength will induce a current of 4.3 A in the coil? What rate of change of the magnetic field strength is required if the magnetic field makes an angle of 20° with the normal to the plane of the coil?

i know that i need to use faradays equation:E = -n(dtheta/dt), and Ohm's law:V =IR

i dont know how to get 'dt' for my equation. i know there is another way to do this problem but i cant really come up with anything at the moment

A 110 turn coil has a radius of 4.1 cm and a resistance of 25 Ohm. The coil is in a uniform magnetic field that is perpendicular to the plane of the coil. What rate of change of the magnetic field strength will induce a current of 4.3 A in the coil? What rate of change of the magnetic field strength is required if the magnetic field makes an angle of 20° with the normal to the plane of the coil?

## Homework Equations

i know that i need to use faradays equation:E = -n(dtheta/dt), and Ohm's law:V =IR

i dont know how to get 'dt' for my equation. i know there is another way to do this problem but i cant really come up with anything at the moment

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