A metal wire of area of cross section 1.6 × 10-7 m² and specific resistance 8 × 10-6 m is bent into a square loop and moved with a constant speed in a uniform magnetic field of induction 2Wb/m². What should be the speed of loop, so as to induce a current of 2 mA in it.
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Q: A rectangular coil with dimensions 0.18 m by 0.27 m has 550 turns of wire. It is rotated about its…
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Q: What is the peak emf generated by rotating a 1070-turn, 16 cm diameter coil in the Earth’s 5·10−5 T…
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Q: The magnetic flux through a coil of wire changes from 9T m- to zero in a time of 0.50 s. What is the…
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Q: An emf is induced by rotating a 1000 turn, 18 cm diameter coil in the Earth’s 5.00 × 10-5 T magnetic…
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Q: What is the peak emf (in kV) generated by a 0.280 m radius, 400-turn coil that is rotated one-fourth…
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Q: revolutions per second in a magnetic field of (5.160x10^-1) T. The maximum EMF generated is:
A: The req answer is given below.
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Q: A metal rod 0.84 m long moves with a speed of 1.9 m/s perpendicular to a magnetic field. If the…
A: Given value--- length of wire = 0.84 m. speed = 1.9 m/s. induced emf = 0.39 V. We have to find---…
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A: The magnetic field strength = 0.207 TExplanation:
Q: the magnetic field starts with a strength (B) of 50 mT into the paper and it decreases to zero and…
A: Given that, the magnetic field starts with a strength (B) of 50 mT into the paper and it decreases…
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- An emf of 60.21 mV is induced in a 200-turn coil when the current is changing at the rate of 11.5 A/s. What is the magnetic flux through each turn of the coil at an instant when the current is 6 A?An emf of 24.0 mV is induced in a 500-turn coil when the current is changing at the rate of 10.0 A/s. What is the magnetic flux through each turn of the coil at an instant when the current is 4.00 A?A conducting coil of 1900 turns is connected to a galvanometer, and the total resistance of the circuit is 30 2. The area of each turn is 4.00 x 10-4 m². This coil is moved from a region where the magnetic field is zero into a region where it is nonzero, the normal to the coil being kept parallel to the magnetic field. The amount of charge that is induced to flow around the circuit is measured to be 7.5 × 10-³ C. Find the magnitude of the magnetic field. Number i 0.29 Units T
- The 1300-turn coil in a dc motor has an area per turn of 2.4 × 10-2 m2. The design for the motor specifies that the magnitude of the maximum torque is 7.8 N·m when the coil is placed in a 0.19-T magnetic field. What is the current in the coil?An emf is induced by rotating a 1000 turn, 15 cm diameter coil in the Earth’s 5.00 × 10-5 T magnetic field. What average emf (in volts) is induced, given the plane of the coil is originally perpendicular to the Earth’s field and is rotated to be parallel to the field in 8 ms?A 5-turn conducting loop with a radius of 3.0 cm with axis of rotation in the plane of the paper spins at 60 revolutions per second in a magnetic field of 0.50 T that is perpendicular to the paper. The maximum emf generated is: 0.14 V 8.3 V 28 V 2.7 V 10.5 V