Home
Class 12
PHYSICS
A straight wire 50cm long carries a curr...

A straight wire `50cm` long carries a current of `5A`. It is placed at right angle to a uniform magnetic field of `1T`. Find the mechanical force on the wire and the power required to move it at `10ms^-1` in a plane at right angles to the magnetic field.

Text Solution

Verified by Experts

Here, `l=50cm=0*50m, I=5A`,
`theta=90^@, B=1T, v=10ms^-1`
`F=BIl sin theta=1xx5xx0*50xxsin90^@=2*5N`
`Power=Fv=2*5xx10=25W`
Promotional Banner

Topper's Solved these Questions

  • MAGNETIC EFFECT OF CURRENT AND MAGNETISM

    PRADEEP|Exercise Conceptual Problems (d)|2 Videos

  • MAGNETIC EFFECT OF CURRENT AND MAGNETISM

    PRADEEP|Exercise Very Short Answer Questions (a)|2 Videos

  • ELECTROSTATICS

    PRADEEP|Exercise ASSERTION-REASON TYPE QUESTIONS|2 Videos

  • OPTICS

    PRADEEP|Exercise Multiple choice questions|1 Videos

Similar Questions

Explore conceptually related problems

A straight wire of 1.4 m long carries a current of 7 A at right angles to a uniform magnetic field of 0.01 T. Calculate the mechanical force acting on the wire due to the magnetic field.

A 0.5m long straight wire in which a current of 1.2A is flowing is kept a right angles to a uniform magnetic field of 2.0 tesla. The force acting on the wire will be-

A wire 2.30 m long carries a current of 13.0 A and makes an angle of 35.0^(@) with a uniform magnetic field of magnitude B = 1.50 T. Calculate the magnetic force on the wire.

A wire bent in the form a right angled triangle PQR , carries a current 1A . It is placed in a region of a uniform magnetic field B=0.2T . If PR=1m , the net force on the wire is

A straight wire of length 0.5 m carrying a current of 1.6 ampere is placed in a uniform magnetic field of induction 2 T. If the magnetic field is perendicular to the length of the wire, then force on the wire is

A straight wire of length 1 m, and carrying a current of 1.8 A, is placed in a uniform magnetic field of induction 2T. If the magntic field is perpendicular to the length of the wire, then the force acting on the wire is

A straight wire of length 50 cm carrying a current of 2.5 A is suspended in mid-air by a uniform magnetic field of 0.5 T (as shown in figure). The mass of the wire is (g = 10 ms^(-2) )