NEET (National Eligibility cum Medical Entrance Test) Physics: Questions 766 - 770 of 2142

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Passage

Read the passage given below and answer the questions that follow:

If the voltage in an a c circuit is represented by the eq. , Equation , then

Question number: 766 (2 of 3 Based on Passage) Show Passage

» Electromagnetic Induction & Alternating Currents » Peak and RMS Value of AC

MCQ▾

Question

Average voltage is

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

220 V

Question number: 767 (3 of 3 Based on Passage) Show Passage

» Electromagnetic Induction & Alternating Currents » Peak and RMS Value of AC

MCQ▾

Question

RMS value of the voltage is

Choices

Choice (4) Response

a.

Equation

b.

314 V

c.

Equation

d.

220 V

Question number: 768

» Laws of Motion » Force and Inertia

MCQ▾

Question

A block of mass M is pulled along a horizontal frictionless surface by a rope of mass m. If a force P is applied at the free end of the rope, the force exerted by the rope on the block will be

Choices

Choice (4) Response

a.

P

b.

Equation

c.

Equation

d.

Equation

Question number: 769

» Magnetic Effects of Current and Magnetism » Biot - Savart Law

MCQ▾

Question

A current i is flowing in a conductor PQRST shaped as shown in the figure. The radius of curved part QRS is r and length of straight portions PQ and ST is very large. The magnetic field at the center O of the curved part is –

current flowing conductor PQRST

Current Flowing Conductor PQRST

A current i is flowing in a conductor PQRST shaped as shown in the figure. The radius of curved part QRS is r and length of straight portions PQ and ST is very large.

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 770

» Electromagnetic Induction & Alternating Currents » Reactance and Impedance

MCQ▾

Question

One 10 V, 60 W bulb is to be connected to 100 V line. The required induction coil has self-inductance of value (f = 50Hz)

Choices

Choice (4) Response

a.

0.052 H

b.

16.2 mH

c.

2.42 H

d.

1.62 mH

f Page
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