JEE Main 2016 (Online) 9th April Morning Slot | Alternating Current and Electromagnetic Induction Question 190 | Physics

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JEE Main 2016 (Online) 9th April Morning Slot

MCQ (Single Correct Answer)

-1

Microwave oven acts on the principle of :

transferring electrons from lower to higher energy levels in water molecule

giving rotational energy to water molecules

giving vibrational energy to water molecules

giving translational energy to water molecules

JEE Main 2016 (Online) 9th April Morning Slot

MCQ (Single Correct Answer)

-1

A series LR circuit is connected to a voltage source with
V(t) = V₀ sin$$\Omega $$t. After very large time, current I(t) behaves as
(t₀ >> $${L \over R}$$) :

JEE Main 2016 (Online) 9th April Morning Slot Physics - Alternating Current and Electromagnetic Induction Question 176 English Option 1

JEE Main 2016 (Online) 9th April Morning Slot Physics - Alternating Current and Electromagnetic Induction Question 176 English Option 2

JEE Main 2016 (Online) 9th April Morning Slot Physics - Alternating Current and Electromagnetic Induction Question 176 English Option 3

JEE Main 2016 (Online) 9th April Morning Slot Physics - Alternating Current and Electromagnetic Induction Question 176 English Option 4

JEE Main 2016 (Offline)

MCQ (Single Correct Answer)

-1

An arc lamp requires a direct current of 10 A at 80 V to function. If it is connected to a 220 V (rms), 50 Hz AC supply, the series inductor needed for it to work is close to :

0.044 H

0.065 H

80 H

0.08 H

JEE Main 2015 (Offline)

MCQ (Single Correct Answer)

-1

Two coaxial solenoids of different radius carry current $$I$$ in the same direction. $$\overrightarrow {{F_1}} $$ be the magnetic force on the inner solenoid due to the outer one and $$\overrightarrow {{F_2}} $$ be the magnetic force on the outer solenoid due to the inner one. Then :

$$\overrightarrow {{F_1}} $$ is radially in wards and $$\overrightarrow {{F_2}} = 0$$

$$\overrightarrow {{F_1}} $$ is radially outwards and $$\overrightarrow {{F_2}} = 0$$

$$\overrightarrow {{F_1}} = \overrightarrow {{F_2}} = 0$$

$$\overrightarrow {{F_1}} $$ is radially inwards and $$\overrightarrow {{F_2}} $$ is radially outards

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