Which part of the bulb is an insulator ?
(A) P
(B) Q
(C) R
(D) S.
Part P is Glass.So it is insulator.So answer is P.R is wrong answer.
Which part of the bulb is an insulator ?
(A) P
(B) Q
(C) R
(D) S.
Part P is Glass.So it is insulator.So answer is P.R is wrong answer.