The loop in the figure has an induced current as shown. The loop has a resistance of 0.28 Ω .
What is the rate of change of the field, ΔB/ΔtΔB/Δt?
The loop in the figure has an induced current as shown. The loop has a resistance...
3. The loop (h=7.6 cm square) in the figure to the right has an induced current of 250 mA as shown. The loop has a resistance of 1.5 12. The x's indicate the direction of the magnetic field. a. Is the magnetic field strength increasing or decreasing? Explain. b. What is the rate of change of the magnetic field, AB/At?
A solenoid passes through the center of a wire loop, as shown in (Figure 1). The solenoid has 1200 turns, a diameter of 2.0 cm, and is 7.5 cm long. The resistance of the loop is 0.032 Ω. Part A If the current in the solenoid is increased by 1.3 A in 30 ms, what is the induced current in the loop?
There is a counterclockwise induced current in the conducting loop shown in the figure. Is the magnetic field inside the loop increasing in strength, decreasing in strenght, or steady?
A 29-cm-circumference loop of wire has a resistance of 0.12 Ω . The loop is placed between the poles of an electromagnet, and a field of 0.45 T is switched on in a time of 15 ms. Part A What is the induced current in the loop?
A loop of wire with radius r = 0.075 m is in a magnetic field with magnitude B as shown in the figure. B changes from B1= 0.35 T to B2 = 3.5s T in Δt=8.5s at a constant rate. The resistance of the wire is R = 1Ω. Part (a) Calculate the numerical value of the change in magnetic flux, ΔΦ in T·m2? Part (b) Calculate the numerical value of the average emf, ε, induced in the loop in volts. Part (c)...
Q1. (25 points) A circular loop of wire of resistance R = 1 N and radius r = 15 cm is in a uniform magnetic field directed out of the page as shown in the figure. a) (7 points) If a clockwise current of I = 8 mA is induced in the loop, is the magnetic field increasing or decreasing in time? b) (8 points) Find the induced emf in the loop. c) (10 points) Find the rate at which...
Q1. (25 points) A circular loop of wire of resistance R = 4 N and radius r = 30 cm is in a uniform magnetic field directed out of the page as shown in the figure. a) (7 points) If a clockwise current of 1 = 20 mA is induced in the loop, is the magnetic field increasing or decreasing in time? b) (8 points) Find the induced emf in the loop. c) (10 points) Find the rate at which...
A loop of wire with radius r=0.015 m is in a magnetic field with magnitude B as shown in the figure. B changes from B1 = 0.35 T to B2 = 4.5T in Δt=5.5s at a constant rate. The resistance of the wire is R=5Ω.Part (a) Express the magnetic flux going through a loop of radius r assuming a constant magnetic field B. Part (b) Express the magnetic flux change, 40, in terms of B1, B2, and r. Part (c) Calculate the...
A 29-cm-circumference loop of wire has a resistance of 0.19 Ω . The loop is placed between the poles of an electromagnet, and a field of 0.55 T is switched on in a time of 15 ms. What is the induced current in the loop? Express your answer with the appropriate units.