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Potential Gradient and Relation between Electric Field and Potential

an electron a...

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an electron accelerated by a PD of 300 V ,is moving at a dis†an ce if 4mm iong straight wire.If a current of 5 A flows through a wire ,then what will be the force acting on electron

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Q. A long straight wire carries a certain current and produces a magnetic field

2 \times 10^{- 4} W b m^{- 2}

at perpendicular distance of 5 cm from the wire. An electron situated at 5 cm from the wire. An electron situated at 5 cm from the wire moves with a velocity

10^{7} m / s

towards the wire along perpendicular to it. The force experienced by the electron will be (charge on electron

1.6 \times 10^{- 1 \circ} C

Q. A current of

2 A

flowing in a wire of length

50 c m

. If this wire is lying in a uniform magnetic field of

5 \times 10^{- 4} N / A - m

making an angle of

60^{o}

with the field, then the force acting on the wire will be :

Q. If a current of

1.5

ampere flows through a metallic wire for

3

hours, then how many electrons would flow through the wire?

0.5 m

long straight wire in which a current of

3.2 A

is flowing is kept at right angle to a uniform magnetic field of

2.0 T

. The force acting on the wire will be :

Q. A long straight wire carries a certain current and produces a magnetic field

2 \times 10^{- 4} W b m^{- 2}

at a perpendicular distance of

5

c m

from the wire. A particle say 'c' having charge equal to that of an electron is situated at

5

c m

from the wire moves with a velocity of

10^{7} m / s

towards the wire perpendicularly. The magnitude of force experienced by the particle will be (charge of an electron =

- 1.6 \times 10^{- 19} C

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