Question

A circuit with a resistance of `6 Omega` has a fuse melts at `5 A`. Can a voltage of `33 V` be applied to the circuit without blowing the fuse?

Answer 1

No.

Explanation:

The basic law to apply is the Ohm's law.
This law says that the voltage is equal to the product of the resistance and the current. In formula: `V=R*I`.
In your circuit you have a voltage of `33` V and a resistance of `6` `\Omega`. The current is then `33=6*I` `I=33/6=5.5` A.
In this circuit it will circulate 5.5 Amps of current, that will burn the fuse that can tollerate only 5 A.