DIRECTIONS: Read the passage given below and answer the questions that follow. Passage When an electric current passes through a wire, it behaves like a magnet. This is the magnetic effect of current. When the electric current is switched off, the coil generally loses magnetism. Such coils are called electromagnets. Which of the following make use of electromagnets?
A) a crane B) an electric bell C) Both of these D) None of these
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C . electromagnets are used in both cases but cranes may or may not use electromagnetism , there are hydrolic cranes also
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