Multiple choice

The instrument ' Television' is used to

  1. Transmitting the visible moving images of wireless waves

  2. Measure potential difference between two points

  3. Amplify currents and perform other functions usually performed by a themionic value

  4. None of these
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A Correct answer
Explanation

A television is an electronic device designed to transmit and receive moving images and sound. It converts electrical signals into visible moving images, typically using wireless waves or cable transmission. The other options refer to different instruments: voltmeter measures potential difference, and transistor performs functions of a thermionic valve.

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