1
JEE Main 2021 (Online) 27th July Evening Shift
Numerical
+4
-1
Change Language
In the given figure the magnetic flux through the loop increases according to the relation $$\phi$$B(t) = 10t2 + 20t, where $$\phi$$B is in milliwebers and t is in seconds.

The magnitude of current through R = 2$$\Omega$$ resistor at t = 5 s is ___________ mA.

JEE Main 2021 (Online) 27th July Evening Shift Physics - Electromagnetic Induction Question 59 English
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2
JEE Main 2021 (Online) 27th July Evening Shift
Numerical
+4
-1
Change Language
A particle executes simple harmonic motion represented by displacement function as

x(t) = A sin($$\omega$$t + $$\phi$$)

If the position and velocity of the particle at t = 0 s are 2 cm and 2$$\omega$$ cm s$$-$$1 respectively, then its amplitude is $$x\sqrt 2 $$ cm where the value of x is _________________.
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3
JEE Main 2021 (Online) 27th July Evening Shift
Numerical
+4
-1
Change Language
A swimmer wants to cross a river from point A to point B. Line AB makes an angle of 30$$^\circ$$ with the flow of river. Magnitude of velocity of the swimmer is same as that of the river. The angle $$\theta$$ with the line AB should be _________$$^\circ$$, so that the swimmer reaches point B.

JEE Main 2021 (Online) 27th July Evening Shift Physics - Motion Question 89 English
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4
JEE Main 2021 (Online) 27th July Evening Shift
Numerical
+4
-1
Change Language
For the circuit shown, the value of current at time t = 3.2 s will be _________ A.

JEE Main 2021 (Online) 27th July Evening Shift Physics - Current Electricity Question 142 English
[Voltage distribution V(t) is shown by Fig. (1) and the circuit is shown in Fig. (2)]
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