which statement is true ?
(i) Kirchoff's law is equally applicable to both AC and DC.
(ii) Semiconductors have a positive temperature coefficient of resistance.
(iii) Meter bridge is greater sensitive when the resistance of all the four arms of the bridge of the same order.
(iv) The emf of a cell depends upon the size and area of electrodes.

Options

A. (i) and (iv)
B. (ii) and (iv)
C. (iii) and (iv)
D. None of these

Answer

A