Question: A galvanometer of resistance G is shunted by a very small resistance S. The resistance of the resulting ammeter is ______________?

• 1. GS/(G+S)
• 2. G+S
• 3. G-S
• 4. None of the above

Question: The sensitivity of a voltmeter which uses a 100 µA meter movement is ____________?

• 1. 1 kO/V
• 2. 10 kO/V
• 3. 5 kO/V
• 4. Data insufficient

Question: The materil used to coat inside the face of CRT is ______________?

• 1. Carbon
• 2. Sulphur
• 3. Silicon
• 4. Phosphorous

Question: The most accurate device for measuring voltage is ____________?

• 1. Voltmeter
• 2. Multimeter
• 3. CRO
• 4. VTVM

Question: A VTVM has_____________input resistance than that of a multi meter?

• 1. More
• 2. Less
• 3. Same
• 4. None of the above

Question: If the full-scale deflection current of a multimeter is 50 µA, its sensitivity is ________________?

• 1. 10 kO/V
• 2. 100 kO/V
• 3. 50 kO/V
• 4. 20 kO/V

Question: A voltmeter is connected in a _____________ with the circuit component across which potential difference is to be measured?

• 1. Parallel
• 2. Series
• 3. Series or parallel
• 4. None of the above

Question: A galvanometer in series with a high resistance is called_______________?

• 1. An ammeter
• 2. A voltmeter
• 3. A wattmeter
• 4. None of the above

Question: A voltmeter should have ____________resistance?

• 1. Zero
• 2. Very high
• 3. Very low
• 4. None of the above

Question: An ammeter should have_____________ resistance?

• 1. Infinite
• 2. Very large
• 3. Very low
• 4. None of the above