JEE Main 2024 (Online) 30th January Morning Shift | Current Electricity Question 37 | Physics

An electric toaster has resistance of $$60 \Omega$$ at room temperature $$\left(27^{\circ} \mathrm{C}\right)$$. The toaster is connected to a $$220 \mathrm{~V}$$ supply. If the current flowing through it reaches $$2.75 \mathrm{~A}$$, the temperature attained by toaster is around : ( if $$\alpha=2 \times 10^{-4}$$/$$^\circ \mathrm{C}$$)

1235 $$^\circ$$C

1667 $$^\circ$$C

694 $$^\circ$$C

1694 $$^\circ$$C

JEE Main 2024 (Online) 29th January Evening Shift

MCQ (Single Correct Answer)

-1

In the given circuit, the current in resistance R$$_3$$ is :

JEE Main 2024 (Online) 29th January Evening Shift Physics - Current Electricity Question 30 English

2 A

1.5 A

1 A

2.5 A

JEE Main 2024 (Online) 29th January Morning Shift

MCQ (Single Correct Answer)

-1

The deflection in moving coil galvanometer falls from 25 divisions to 5 division when a shunt of $$24 \Omega$$ is applied. The resistance of galvanometer coil will be :

$$48 \Omega$$

$$100 \Omega$$

$$96 \Omega$$

$$12 \Omega$$

JEE Main 2024 (Online) 29th January Morning Shift

MCQ (Single Correct Answer)

-1

A galvanometer having coil resistance $$10 \Omega$$ shows a full scale deflection for a current of $$3 \mathrm{~mA}$$. For it to measure a current of $$8 \mathrm{~A}$$, the value of the shunt should be:

$$3.75 \times 10^{-3} \Omega$$

$$3 \times 10^{-3} \Omega$$

$$4.85 \times 10^{-3} \Omega$$

$$2.75 \times 10^{-3} \Omega$$

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