MHT CET 2024 3rd May Morning Shift | MHT CET Year Wise Previous Years Questions

An inductance coil has a resistance of $80 \Omega$. When on AC signal of frequency 480 Hz is applied to the coil, the voltage leads the current by $45^{\circ}$. The inductance of the coil in henry is $\left[\sin 45^{\circ}=\cos 45^{\circ}=1 / \sqrt{2}\right]$

$\frac{1}{24 \pi}$

$\frac{\pi}{20}$

$\frac{\pi}{40}$

$\frac{1}{12 \pi}$

MHT CET 2024 3rd May Morning Shift

MCQ (Single Correct Answer)

-0

The displacement of a wave is given by $y=0.002 \sin (100 t+x)$ where ' $x$ 'and ' $y$ ' are in metre and ' $t$ ' is in second. This represents a wave

of wavelength one metre

travelling with a velocity of $100 \mathrm{~m} / \mathrm{s}$ in the negative $x$-direction

of frequency $\left(\frac{100}{\pi}\right) \mathrm{Hz}$

travelling with a velocity of $\left(\frac{50}{\pi}\right) \mathrm{m} / \mathrm{s}$ in the positive x -direction

MHT CET 2024 3rd May Morning Shift

MCQ (Single Correct Answer)

-0

A current of 5 A flows through a toroid having a core of mean radius 20 cm . If 4000 turns of the conducting wire are wound on the core, then the magnetic field inside the core of the toroid is [permeability of free space $=4 \pi \times 10^{-7}$ SI units]

$8 \times 10^{-2} \mathrm{~Wb} / \mathrm{m}^2$

$6 \times 10^{-2} \mathrm{~Wb} / \mathrm{m}^2$

$5 \times 10^{-2} \mathrm{~Wb} / \mathrm{m}^2$

$2 \times 10^{-2} \mathrm{~Wb} / \mathrm{m}^2$

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