Physics
Indicate the false statement about the resistance of a wire

It is directly proportional to the length of wire
Resistance of metallic wire increases with increase in temperature
It depends on material of wire
It is directly proportional to the area of cross-section of wire

ANSWER DOWNLOAD EXAMIANS APP

Physics
A balloon filled with hydrogen will

Burst after reaching some height
Continue going upwards uninterrupted
Reach a particular height and start coming down
Reach a particular height and remain floating

ANSWER DOWNLOAD EXAMIANS APP