Question

A potential difference of 35v is applied across the ends of a
resistance of 3 ohms. How much current will flow in the
resistance?

Answer 1

Answer:-

• Potential difference=V=35V
• Resistance=R=3ohm
• Current=I=?

According to ohms law

$\boxed{\sf \dfrac{V}{I}=R}$

$\\ \sf\longmapsto I=\dfrac{V}{R}$

$\\ \sf\longmapsto I=\dfrac{35}{3}$

$\\ \sf\longmapsto I=11.6A$

$\\ \underline{\boxed{\bf{\therefore Current=11.6A}}}$

Note

SI units

• Current=Ampere(A)
• Potential difference=Volts(V)
• Resistance=Ohm($\Omega$)