A conducting rod AB (Fig. 7.8) makes contact with metal rails AD and BC which are 50 cm apart in a uniform magnetic field of b = 1.0Wb/m2 perpendicular to the plane ABCD. The total resistance (assumed constant) of the circuit ABCD is 0.4 ohm

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1. A conducting rod AB (Fig. 7.8) makes contact with metal rails AD and BC which are 50 cm apart in a uniform magnetic field of b = 1.0Wb/m2 perpendicular to the plane ABCD. The total resistance (assumed constant) of the circuit ABCD is 0.4 ohm
1. A conducting rod AB (Fig. 7.8) makes contact with metal rails AD and BC which are 50 cm apart
in a uniform magnetic field of B = 1.0 Wb/m2 perpendicular to the plane ABCD. The total
resistance (assumed constant) of the circuit ABCD is 0.4 0.
D
50 cm
Fig. 7.8
(a) What is the direction and magnitude of the e.m.f. induced in the rod when it is moved to the left
with a velocity of 8 m/s ?
(b) What force is required to keep the rod in motion ?
(c) What is the value of mechanical work done by the force F.
(d)What is the value of electric power in the circuit
Transcribed Image Text:1. A conducting rod AB (Fig. 7.8) makes contact with metal rails AD and BC which are 50 cm apart in a uniform magnetic field of B = 1.0 Wb/m2 perpendicular to the plane ABCD. The total resistance (assumed constant) of the circuit ABCD is 0.4 0. D 50 cm Fig. 7.8 (a) What is the direction and magnitude of the e.m.f. induced in the rod when it is moved to the left with a velocity of 8 m/s ? (b) What force is required to keep the rod in motion ? (c) What is the value of mechanical work done by the force F. (d)What is the value of electric power in the circuit
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