The inductance of a closely packed coil of 500 turns is 11 mH. Calculate the magnetic flux through the coil when the current is 6.9 mA. Number i Units
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A: peak voltage of the generator is = 490 VN = 495 turns diameter d = 8 cm = 0.08 mB = 0.250 T
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- Suppose that a rectangular toroid has 1, 600 windings and a self-inductance of 0.070 H. If h = 0.13 m, what is the ratio of its outer radius to inner radius? R2 -R1- dr da R2 R1A transformer consists of 275 primary windings and 834 secondary windings. If the potential difference across the primary coil is 25.0 V. what is the voltage across the secondary coil? Is this a step up or step down transformer? Explain. What is the effective load resistance of the secondary coil if it is connected across a 125 Ω resistor ?The inductance of a closely packed coil of 510 turns is 7.4 mH. Calculate the magnetic flux through the coil when the current is 7.4 mA. Number Save for Later Units Attempts: 0 of 5 used Submit Answer
- In the circuit shown, the switch S is closed at time t=0. a) Find the current in the 100 2 resistor immediately after the switch is closed. b) Find the current in the 10 fesistor immediately after the switch is closed. c) Find the current I in the inductor at the switch has been closed. T is a very long time after the switch has been closedTwo coils of wire are placed close together. Initially, a current of 2.01 A exists in one of the coils, but there is no current in the other. The current is then switched off in a time of 2.58 x 102 s. During this time, the average emf induced in the other coil is 3.65 V. What is the mutual inductance of the two-coil system? Number i Units Switch Primary Secondary1Write out generic mathematical expressions for current and potential difference in a series circuit. 2What is magnetic induction? the creation of a magnet by bringing a magnet close to another non-magnetic material branch of physics dealing with the interaction of electric and magnetic fields an area surrounding a magnet in which a magnetic force acts on a moving charge a piece of metal that has atoms aligned such that it attracts other pieces of metal 3A square boat of area = 2 m2 floats on the water with 1 m of boat submerged in the water. Estimate the buoyant force on the boat and the pressure at the bottom of the boat. The density of water is 997 kg/m3. Fb = 30,000 N and P = 20,000 Pa Fb = 10,000 N and P = 20,000 Pa Fb = 100 N and P = 200 Pa Fb = 20,000 N and P = 10,000 Pa professor can you answer these 3 questions please?
- 1 The induced e.mf in a circuit always oppose the decay or growth of magnetic flux. This statement is called * O Faradays law Lenz law O Ohms law Compton effectI don't know what I am doing wrong with this problem can you help me figure out what it is I'm doing wrong?A plug-in transformer, like that in the figure below, supplies 9.00 V to a video game system. How many turns are in its secondary coil, if its input voltage is 120 V and the primary coil has 420 turns? What is its input current when its output is 1.45 A?
- I need a clear explanation pleaseDetermine the equivalent inductance for each of the networks of inductors shown in the figures below. Each inductor has an inductance of 100 mH. е. f.When the current in a solenoid uniformly increases from 3.0 A to 8.0 A in a time 0.25 s, the induced EMF is 0.50 volts. What is the inductance of the solenoid? a. 25 mH b. 40 mH c. 30 mH d. 35 mH e. 20 mH