A wire that supplies a shower heater with a current of $35\,\text{A}$ has a resistance of $25\,\text{m}\Omega$. What power is dissipated in the wire?
- A$31\,\text{W}$
- B$49\,\text{W}$
- C$31\,\text{kW}$
- D$49\,\text{kW}$
Physics 9702 · AS & A Level · Potential difference and power