A circuit with a resistance of #6 Omega# has a fuse melts at #5 A#. Can a voltage of #27 V# be applied to the circuit without blowing the fuse?

1 Answer
Feb 3, 2016

Answer:

It should not blow the fuse.

Explanation:

#"Current" (I) = ("Voltage" (V))/("Resistance" (R))#

In this case
#color(white)("XXX")I = (27 V)/(6 Omega) = 4.5 (V/Omega)=4.5 A#(mperes).

If the fuse is rated as being able to handle up to #5 A#
this should be alright.