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Q JEE MAIN 2019
A moving coil galvanometer has resistance $50 \Omega$ and it indicates full deflection at 4 mA current. A voltmeter is made using this galvanometer and...
JEE Main Physics Medium
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Q JEE MAIN 2019
In the circuit shown, the potential difference between A and B is:
JEE Main Physics Medium
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Q JEE MAIN 2019
A galvanometer having a resistance of $20 \Omega$ and 30 divisions on both sides has figure of merit 0.005 ampere/division. The resistance that should be...
JEE Main Physics Medium
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Q JEE MAIN 2019
Q.12 A carbon resistance has a following colour code. What is the value of the resistance?
JEE Main Physics Easy
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Q JEE MAIN 2020
Two resistors $400 \Omega$ and $800 \Omega$ are connected in series across a 6 V battery. The potential difference measured by a voltmeter of $...
JEE Main Physics Easy
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Q JEE MAIN 2019
A wire of resistance R is bent to form a square ABCD as shown in the figure. The effective resistance between E and C is...
JEE Main Physics Easy
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Q JEE MAIN 2020
Two steel wires having same length are suspended from a ceiling under the same load. If the ratio of their energy stored per unit volume...
JEE Main Physics Easy
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Q JEE MAIN 2020
The series combination of two batteries, both of the same emf 10 V , but different internal resistance of $20 \Omega$ and $5 \Omega$, is...
JEE Main Physics Medium
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Q JEE-MAIN 2020
Which of the following will NOT be observed when a multimeter (operating in resistance measuring mode) probes connected across a component, are just reversed?
JEE Main Physics Easy
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Q JEE MAIN 2020
A galvanometer having a coil resistance $100 \Omega$ gives a full scale deflection when a current of 1 mA is passed through it. What is...
JEE Main Physics Easy
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