Question

If the resistance of your body is ${10}^5\Omega$, what will be the current flowing through your body if you touch both the terminals of a 13 V battery at once?

• A. $26\times {10}^{-6}$ A
• B. $1.3\times {10}^{-3}$ A
• C. $1.3\times {10}^{-4}$ A
• D. $2.6\times {10}^{-5}$ A

Answer 1

The correct option is C $1.3\times {10}^{-4}$ A

Using Ohm's law, Voltage (V) = Current (I) $\times$ Resistance (R),
Current flowing through your body will be I = $\frac{\text{V}}{\text{R}}$ = $\frac{13}{{10}^5}$ = $13\times {10}^{-5}$ = $1.3\times {10}^{-4}$ A.