Question

In a circuit, containing a capacitor and an AC source, the current is zero at the instant the source voltage is maximum. Is it consistent with Ohm's Law?

Answer 1

V = IR or Ohm's Law

Explanation:

• Ohm's Law is a good relation between the three basic quantities of electricity (Voltage, Ampere and Resistance)

• As per the Ohm's law, in between two points of a conductor, Voltage is directly proportional to current.

or I = $\frac {V}{R}$

where I is Current (Ampere)

• V  = Voltage (V)

• R = Resistance ($\Omega$)

Ohm’s Law holds good for those circuits which are resistive only.  

For the inductive and capacitive circuits or for both together, its not valid.