Physics

Problem

Four resistors are connected in a Wheatstone bridge arrangement such that the resistances are

60\,\Omega

40\,\Omega

90\,\Omega

and

60\,\Omega

. The bridge is connected to a

12\,\text{V}

battery having an internal resistance of

3\,\Omega

. If the bridge is known to be balanced, the current drawn from the battery is closest to a)

0.24\,\text{A}

0.12\,\text{A}

0.19\,\text{A}

0.20\,\text{A}