Question

Capacitors are combined in which arrangement when we require a large capacitance at small

potentials?​

Answer 1

The potential V of a conductor depends upon the charge Q given to it. According to observations, the potential of a conductor is proportional to the charge on it.

Q ∝V or Q = CV

The proportionality constant ‘C’ is known as the capacitance of the conductor. Thus,

C = Q/V

The capacity of a conductor is the ratio between the charge of the conductor to its potential. If V = 1, then C = Q. The capacity of a conductor is the charge required to raise it through a unit potential

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Answer 2

Answer:

A toroid of 4000 turns has outer radius of 26 · calculate the magnetic field of the toroid. cm and inner radius of 25 cm. If the current in the wire ls 10 A,