PH-674
Electrical safety
Physics · Secondary 3 · Medium · Electrical safety
A washing machine has a metal case connected to Earth. The resistance of the earth path from the case back to the mains supply is . The mains voltage is 230 V. If the live wire touches the metal case, what current flows along the earth path?
- 0.43 A
- 2.3 A
- 4.3 A
- 23 A
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