AIPMT 2008 | Moving Charges and Magnetism Question 55 | Physics

AIPMT 2008

MCQ (Single Correct Answer)

-1

A closed loop PQRS carrying a current is placed in a uniform magnetic field. If the magnetic forces on segments PS, SR and RQ are F₁, F₂ and F₃ respectively and are in the plane of the paper and along the directions shown, the force on the segment QP is
AIPMT 2008 Physics - Moving Charges and Magnetism Question 37 English

AIPMT 2008 Physics - Moving Charges and Magnetism Question 37 English

$$\sqrt {{{\left( {{F_3} - {F_1}} \right)}^2} - F_2^2} $$

$${F_3} - {F_1} + {F_2}$$

$${F_3} - {F_1} - {F_2}$$

$$\sqrt {{{\left( {{F_3} - {F_1}} \right)}^2} + F_2^2} $$

AIPMT 2008

MCQ (Single Correct Answer)

-1

A galvanometer of resistance 50 $$\Omega $$ is connected to a battery of 3 V along with a resistance of 2950 $$\Omega $$ in series. A full scale deflection of 30 divisions is obtained in the galvanometer. In order to reduce this deflection to 20 divisions, the resistance in series should be

$$6050$$ $$\Omega $$

$$4450\,\Omega $$

$$5050\,\Omega $$

$$5550\,\Omega $$

AIPMT 2007

MCQ (Single Correct Answer)

-1

Under the influence of a uniform magnetic field, a charged particle moves with constant speed v in a circle of radius R. The time period of rotation of the particle

depends on R and not on v

is independent of both v and R

depends on both v and R

depends on v and not on R

AIPMT 2007

MCQ (Single Correct Answer)

-1

The resistance of an ammeter is 13 $$\Omega $$ and its scale is graduated for a current upto 100 amps. After an additional shunt has been connected to this ammeter it becomes possible to measure currents upto 750 amperes by this meter. The value of shunt-resistance is

2 $$\Omega $$

0.2 $$\Omega $$

2 k$$\Omega $$

20 $$\Omega $$

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