A circuit with a resistance of #6 Omega# has a fuse that melts at #8 A#. Can a voltage of #24 V# be applied to the circuit without blowing the fuse?

1 Answer
Alan P.
Jun 22, 2016

Yes; this will not blow the fuse.

Explanation:

Current (#I#) varies directly as Voltage (#V#) and inversely as Resistance (#R#)
#color(white)("XXX")I=V/R#

In this case
#color(white)("XXX")I=(24 v)/(6 Omega)= 4 ("volts")/(Omega) = 4 " Ampers"#

Since this is less than the maximum load that the fuse can handle,
the fuse will not be blown.

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