A conducting wire 20 cm long bent into rectangular loop 6 cm × 4 cm is placed (kept) perpendicular to the magnetic field of induction 0.5 T. Within 0.ls, the loop is changed to a square and magnetic induction is increased to 1T, what will be the e.m.f. induced in the wire?

Q: . A rod of length 1 is rotated with angular speed o about its one end perpendicular to a magnetic…

A: We need to compute-Induced emf e=?The data given as-Length of rod=lAngular speed=ωMagnetic field=B

Q: If a very small loop of current produces a magnetic field of strength B at a distance z away from…

A: The formula for magnetic field on a point  at distance z from the loop is  B=μ0IR22z2+R232

Q: :. An electron moving at the speed of 107 m/s, enters a magnetic field of induction 0.1 T at right…

A: To find-Radius of path of electron=?Given-Speed of electron (V)=107 m/sMagnetic field (B)=0.1 T

Q: A straight conductor of length ?l moves with an acceleration ?=0.1a=0.1 ms-2 at the right angle to…

A: The given data are: a=0.1 m/s2B=11.1 Tϵ=5 Vt=20 s Here, a denotes the acceleration,  ϵ denotes the…

Q: constant electric flux of 1800 Volt-meters passes through the center of a loop of wire whose…

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Q: When charges moving in piece of material are placed into a region of magnetic field, they feel a eEH…

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Q: wire loop with a resistance of 2.5 ohms and a radius of 0.255m is places in a magnetic field that…

A: Given resistance of wire = 2.5 ohms radius of wire =  0.255 m  B(t)=0.25e^(-.5t) We have to…

Q: A bar of iron is said to be saturated once most of its magnectic molecular are aligned whereby…

A: 1) FALSE , saturation is the state where increasing the magnetomotive force stops affecting the…

Q: A coil carrying electric current is placed in uniform magnetic field with the angle 0. Then a.…

A: When a current carrying coil is placed in a uniform magnetic field, then magnetic moment is…

Q: The distance between the wingtips of an aircraft is 40m. Find the e.m.f. induced between the…

A: The induced emf is given by  ε=Blv it is given that  B=4×10-5 wb/m2l=40 mv=1000 km/hr=277.78 m/s

Q: The magnetic field in the figure is changing in strength. As a result, on the shown loop of area…

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Q: Kh-1M. For the Fig. shown the of the angle of the compass is 45° with respect to the earth magnetic…

A: Given data The angle of the compass is θ=45° The magnitude of the current in the loop is I = 7.5 mA…

Q: The metal rod 1 m long rotates about its one end in a plane at right angles to a horizontal magnetic…

A: To find-Induced emf (e)=?Given-Length of the rod (l)=1 mfrequency (n)=100 rpsMagnetic induction…

Q: What is the magnetic induction at the Yentre of a T.G. coil of 50 turns of average radius 10 cm,…

A: We have given Number of turns N = 50  Radius r = 10 cm               r = 0.1 m  Current i = 0.35 A…

Q: A metal rod 1 m long rotates about one end in the plane perpendicular to a uniform magnetic field of…

A: Given : Length of the rod, l = 1 m Magnetic field induction, B = 0.38×10-4 Wb/m2 (or T) Because 1 T…

Q: 60 ampere current is flowing in a horizontal power line from east to west. What will be intensity of…

A: Given: the current flowing through the wire, I = 60 A  from east to west distance from the wire, r =…

Q: The circular loop with a radius of 12cm seen in the figure is in a uniform magnetic field of 0.15T…

A: The circular loop initially has a radius of 12 cm, thus a diameter of 24 cm and is kept in a 0.15 T…

Q: A football quarterback, to obtain good grades while strengthening his throwing arm, is asked to…

A: when a coil of N turn is rotated in a magnetic field then EMF generated in the coil is expressed as…

Q: The magnetic field generated by the current ; the center of the coil equal to: 2π-10-6 T 2π-10-7 T…

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Q: Calculate the magnetic induction, B, of a wire that carries a current of 100 amps, at a distance of…

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Q: A coil having an area 2m² is placed in a magnetic field which changes from 1Wb/m² to 4Wb/m² in an…

A: Given: Area, A= 2 m2change in time, ∆t= 2 sec

Q: The magnitude of the applied magnetic field in an MRI machine is 2.20 T at the patient's head. The…

A: Given data- dBdh=0.05 T/mat the head, B=2.20 TLarmor frequency is given by,f=e4πmBwhere,B=magnetic…

Q: A wire of resistance 0.50 ohms forms a loop of area 7.85*10^5 m^2, andthen is placed in a uniform…

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Q: A loop of wire initially oriented perpendicular to a magnetic field is 1.5 T. if is then rotated…

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Q: If the distance between the plates of a capacitor of radius R and consisting of two opposing…

A: Given: Radius of plates = R Distance between plates, d = 5 mm Potential difference between the…

Q: 1) A 300-turns circular loop of radius 38 cm, carries a current of 22 A creates a torque of 400 N m…

A:

Q: A square, single turn coil of length 0.02-m is placed with its plane perpendicular to a constant…

A: length (l) = 0.02 m emf induced (E) = 18 mV = 0.018 Vrate of decrease of magnetic field = dAdt = 0.1…

Q: If a Palmieri circle (see figure) formed by N coils of area is rotated with an angular velocity W an…

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Q: A flashlight can be made that is powered by the inducedcurrent from a magnet moving through a coil…

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Q: A conducting crossbar is in electrical contact with two vertical conducting wires and slides down…

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Q: A metal rod 1 m long rotates about one end in the plane perpendicular to a uniform magnetic field of…

A: We need to find- Induced emf (e)=? The data given as- l=1 m B=0.38 x 10-4 Wb/m2 n=720 rpm=72060=12…

Q: A coil of wire consists of 20 turns each of which has an area of 0.0015 m². A magnetic field is…

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Q: A metal rod of length 1 m is rótated about one of its ends in a plane at right angles to a uniform…

A: