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1
JEE Main 2021 (Online) 1st September Evening Shift
Numerical
+4
-1
A uniform heating wire of resistance 36$$\Omega$$ is connected across a potential difference of 240 V. The wire is then cut into half and potential difference of 240V is applied across each half separately. The ratio of power dissipation in first case to the total power dissipation in the second case would be 1 : x, where x is ____________
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2
JEE Main 2021 (Online) 31st August Evening Shift
Numerical
+4
-1
A resistor dissipates 192 J of energy in 1s when a current of 4A is passed through it. Now, when the current is doubled, the amount of thermal energy dissipated in 5s in _________ J.
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3
JEE Main 2021 (Online) 31st August Morning Shift
Numerical
+4
-1
A square shaped wire with resistance of each side 3$$\Omega$$ is bent to form a complete circle. The resistance between two diametrically opposite points of the circle in unit of $$\Omega$$ will be ___________.
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4
JEE Main 2021 (Online) 31st August Morning Shift
Numerical
+4
-1
The voltage drop across 15$$\Omega$$ resistance in the given figure will be ______________ V.

JEE Main 2021 (Online) 31st August Morning Shift Physics - Current Electricity Question 85 English
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