A 300 $$\Omega$$ resistor and a capacitor of $$\left( {{{25} \over \pi }} \right)$$ $$\mu$$F are connected in series to a 200 V $$-$$ 50 Hz ac source. The current in the circuit is -

The core of a transformer is laminated to reduce the effect of

Assertion (A) : A negative charge in an electric field moves along the direction of the electric field.

Reason (R) : On a negative charge a force acts in the direction of the electric field.

Assertion (A) : The poles of a bar magnet cannot be separated.

Reason (R) : Magnetic monopoles do not exist.