Statement I: Heater wire must have high resistance than connecting wires and high netallic point.
Statement II : If resistance is high , the electrical conductivity will be less.

Options

A. Statement I is True , Statement II is True , Statement II is a correct explanation for Statement I.
B. Statement I is True, Statement II is True , Statement II is NOT a correct explanation for statement I.
C. Statement I is True , Statement is False.
D. Statement I is False, Statement II is True.

Answer

B

Explanation

Heater wire must have high resistance than connecting wires so that most of the potential drops across the heater wire. Because in series the more the resistances , the more the potential difference . Obviously , it should have high melting point.