Effects of an Electric Current

The effects of electric current, except....

• chemical effect

• heating effect

• magnetic effect

• voltage effect

When an electric currents is passed through certain liquids, there will be a chemical change. This process is called....

• electroplating

• electrolysis

• electricity

• extraction

The coating of metal object with another metal to prevent rusting is called....

• extraction of metal

• electrolysis

• electroplating

The effect when an electric current flows near a compass....

• compass needle will be deflected

• compass needle will stay at the same position

• no magnetic effect around the wire

The way to increase the magnetic effect....

• using resistance in a coil of wire

• making a potential difference to the wire

• making a current flow in a coil of wire

In heating appliances, the heating element is made of materials with....

• high melting points

• low melting points

The use of the heating effect....( one example)

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Explain the heating effect of current in the lighting effect....

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