1
BITSAT 2022
MCQ (Single Correct Answer)
+3
-1

In the circuit shown assume the diode to be ideal. When Vi increases from $$-$$2V to 6V, the change in current is (in mA)

BITSAT 2022 Physics - Semiconductor Devices and Logic Gates Question 2 English

A
Zero
B
20
C
$$\frac{25}{8}$$
D
32
2
BITSAT 2022
MCQ (Single Correct Answer)
+3
-1

The de-Broglie wavelength of an electron moving with a velocity $$\frac{c}{3}$$ (c = 3 $$\times$$ 108 m/s) is equal to the wavelength of photon. The ratio of the kinetic energies of electron and photon is

A
1 : 4
B
1 : 3
C
1 : 2
D
2 : 1
3
BITSAT 2022
MCQ (Single Correct Answer)
+3
-1

In the circuit shown in the figure, the AC source gives a voltage V = 20 cos (2000t) neglecting source resistance, the voltmeter and ammeter reading will be

BITSAT 2022 Physics - Alternating Current Question 1 English

A
0 V, 0.47 A
B
2.82 V, 1.41 A
C
1.41 V, 0.47 A
D
1.5 V, 8.37 A
4
BITSAT 2022
MCQ (Single Correct Answer)
+3
-1

An electromagnetic wave is propagating along X-axis. At x = 1 cm and t = 18s, its electric vector |E| = 8 V/m, then the magnitude of its magnetic vector is

A
2.66 $$\times$$ 10$$-$$8
B
3 $$\times$$ 10$$-$$7
C
3.14 $$\times$$ 10$$-$$8
D
3.16 $$\times$$ 10$$-$$7
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