JEE Main 2024 (Online) 9th April Morning Shift | Current Electricity Question 52 | Physics

Water boils in an electric kettle in 20 minutes after being switched on. Using the same main supply, the length of the heating element should be _________ to __________ times of its initial length if the water is to be boiled in 15 minutes.

increased, $$\frac{3}{4}$$

increased, $$\frac{4}{3}$$

decreased, $$\frac{3}{4}$$

decreased, $$\frac{4}{3}$$

JEE Main 2024 (Online) 8th April Morning Shift

MCQ (Single Correct Answer)

-1

In the given circuit, the terminal potential difference of the cell is :

JEE Main 2024 (Online) 8th April Morning Shift Physics - Current Electricity Question 57 English

3 V

4 V

2 V

1.5 V

JEE Main 2024 (Online) 6th April Evening Shift

MCQ (Single Correct Answer)

-1

The number of electrons flowing per second in the filament of a $$110 \mathrm{~W}$$ bulb operating at $$220 \mathrm{~V}$$ is : (Given $$\mathrm{e}=1.6 \times 10^{-19} \mathrm{C}$$)

$$1.25 \times 10^{19}$$

$$31.25 \times 10^{17}$$

$$6.25 \times 10^{18}$$

$$6.25 \times 10^{17}$$

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