A Galvanometer is an instrument that can be used to construct an ammeter for measuring…
Physics · JEE Advanced · NTA Exams — Current Electricity
A Galvanometer is an instrument that can be used to construct an ammeter for measuring current .It can be used converted to a voltmeter. It can also be used as a multimeter. In all cases resistance must be connected to galvanometer either in series or in parallel to effect the change .To turn into an ammeter a low resistance in parallel of suitable value and to convert to a voltmeter a resistance in series is connected to the galvanometer. You are given a galvanometer for which a current of 10 mA is required for full deflection .The internal resistance of the galvanometer is 100 ohm. Then answer the following questions.
What resistance must be connected in series to the galvanometer in order to convert it to a 100 volt voltmeter?
- 600 ohm
- 1000 ohm
- 9900 ohm
- 13,900 ohm
Answer
(C) 9900 ohm
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- The potential difference applied to an X-ray tube is 5kV and the current through it is 3.2 mA. Then the…
- The current i in the circuit (see fig) is
- Statement–1 : When the battery is short circuited the terminal potential difference is zero. Statement–2 : In…
- Given below are two statements. Statement-1 : The resistivity of a semiconductor increases with increase of…
- To verify Ohm’s law, a student is provided with a test resistor R T , a high resistance R 1 , a small…
- The potentiometer basically consists of a uniform wire of resistance R through which a steady current flows…
- Bohr and Biot purchased two electric kettles A and B of the same size and thickness and same volume of 0.4…
- Shown in the figure adjacent is a meter-bridge set up with null deflection in the galvanometer. The value of…
More Current Electricity questions · Browse all practice questions