A long solenoid has n = 420 turns per meter and carries a current given by I = 33.0(1 - e-1.60t ), where I is in amperes and t is in seconds. Inside the solenoid and coaxial with it is a coil that has a radius of R = 6.00 cm and consists of a total of N = 250 turns of fine wire (see figure below). What emf is induced in the coil by the changing current? (Use the following as necessary: t. Assume E is in mV and t is in seconds.) E = n turns/m 000000GO000000000000 N turns
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- A coil of 15 turns and radius 10.0 cm surrounds a long solenoid of radius 1.60 cm and 1.00 x 10° turns/meter (see figure below). The current in the solenoid changes as I = 6.00 sin 120 t, where I is in amperes and t is in seconds. Find the induced emf (in volts) in the 15-turn coil as a function of time. E = 15-turn coil= The magnetic flux through the loop increases according to the relation B 6.0t² + 7.0t as show in the figure, where Pg is in milliwebers and t is in seconds. (a) What is the magnitude of the emf induced in the loop when t = 2.0 s? (b) Is the direction of the current through R to the right or left? ܝܐIn the figure, a 110-turn coil of radius 3.2 cm and resistance 7.7 Q is coaxial with a solenoid of 260 turns/cm and diameter 4.6 cm. The solenoid current drops from 2.1 A to zero in time interval At = 32 ms. What current is induced in amperes in the coil during At? Coil Solenoid Number i Units >
- A coil of 15 turns and radius 10.0 cm surrounds a long solenoid of radius 2.40 cm and 1.00*103 turns/meter (see figure below). The current in the solenoid changes as I = 7.00 sin 120 t, where I is in amperes and t is in seconds. Find the induced emf (in volts) in the 15-turn coil as a function of timeA long solenoid (cross-sectional area = 1.5 x 10-6 m2, number of turns per unit length = 3587 turns/m) is bent into a circular shape so it looks like a doughnut. This wire-wound doughnut is called a toroid. Assume that the diameter of the solenoid is small compared to the radius of the toroid, which is 0.073 m. Find the emf induced in the toroid when the current decreases from 2.5 A to 1.1 A in a time of 0.15 s. Number i UnitsA coil with 115 loops and area 0.0120 m^2 rotates at 60.0 Hz through a B field of 0.125 T. What is the maximum EMF generated? (Hint: The angular frequency is NOT 60.0 Hz.) (Unit = V) EMF (V)
- In the figure, a 140-turn coil of radius 1.8 cm and resistance 7.3 Ω is coaxial with a solenoid of 220 turns/cm and diameter 2.5 cm. The solenoid current drops from 1.7 A to zero in time interval Δt = 31 ms. What current is induced in amperes in the coil during Δt?A long solenoid has n = 370 turns per meter and carries a current given by I = 35.0(1 - e-1.60t ), where I is in amperes and t is in seconds. Inside the solenoid and coaxial with it is a coil that has a radius of R = 6.00 cm and consists of a total of N = 250 turns of fine wire (see figure below). What emf is induced in the coil by the changing current? (Use the following as necessary: t. Assume E is in mV and t is in seconds.) E = n turns/m 00000000000 do0o Co0000000oo00000000000 N turnsA 2-turn planer loop of flexible wire is placed inside a long solenoid of n turns per meter that carries a constant current I0 . The area A of the loop is changed by pulling on its sides while ensuring that the plane of the loop always remains perpendicular to the axis of the solenoid. If n = 500 turns per meter, I0 = 20 A, and A = 20 cm2, what is the emf induced in the loop when dA/dt = 100?
- A solenoid of length 3.70 cm and diameter 0.760 cm is wound with 272 turns per centimeter. A) If the current in the solenoid is decreasing at a rate of 38.8 A/s, what is the induced emf in one of the windings? B) If the current in the solenoid is decreasing at a rate of 38.8 A/s, what is the induced emf in the entire solenoid?A long solenoid has a length 7.9-m, radius 3.5-cm, and 370 turns. It surrounds coil of radius 6.9 meters and 73 turns. If the current in the solenoid is changing at a rate of 710-A/s, what is the magnitude (absolute value) of the emf induced in the surrounding coil? |emf|= = V (Show at least 2 significant figures.)Consider a 12-loop coil with a diameter of 8 cm; a north-leading bar magnet moves further away from the coil (where the bar magnet is perpendicular to the cross section of the coil, and the north pole is closest to the coil as the magnet moves away). The magnetic field value changes from 0.065 T to 0.00065 T in 1.6 s. What is the induced emf for the coil? emf = V