Part A ong, thin solenoid has 850 turns per meter and dius 2.40 cm . The current in the solenoid is reasing at a uniform rate of 61.0 A/s What is the magnitude of the induced electric field at a point 0.530 cm from the axis of the solenoid? E = V/m Submit Request Answer Part B What is the magnitude of the induced electric field at a point 1.50 cm from the axis of the solenoid? ? E2 = V/m Submit Request Answer 国

A circular wire loop of radius a and resistance R is pulled with constant speed v into a uniform magnetic field B. The loop is perpendicular to the field, and it begins entering the field at time t = 0. Find an expression for the current in the loop from t = 0 until the loop is fully immersed in the field. %3D

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A metal detector with two coils (an exciter and a detector) is an example of an active detection system. Suppose a metallic coin (which is non-magnetic on its own, but can have a magnetic field induced by an exciter coil) is lost under the sand at the beach. Part A The exciter coil would use electric current. The detector coil will detect a signal from the lost coin under the sand because $E - al = an AC, at O an AC, $B · Əl = µo(I + e, E) at a DC, at $B· al = µo(1 + €o a DC, at

1 Problem 4: UP 12.55 A solenoid with 25 turns per centimeter carries a current I. Inside the solenoid, an electron moves uniformly in a circle with radius 2.0 cm, with the circle perpendicular to the axis of the solenoid. If the speed of the electron is 2.0 x 105 m/s, what is the current I in the solenoid?

To construct a solenoid, you wrap insulated wire uniformly around a plastic tube 8.9 cm in diameter and 45 cm in length. You would like a 3.2 AA current to produce a 2.6 kGkG magnetic field inside your solenoid. Part A What is the total length of wire you will need to meet these specifications? Express your answer using two significant figures.

A motor run by a 7.8-V battery has a 15-tum square coil with sides of length 5.4 cm and total resistance 202. When spinning, the magnetic field felt by the wire in the coil is 0.028 T. ▼ Part A What is the maximum torque on the motor? Express your answer to two significant figures and include the appropriate units. T=4.7.10 4 μA Provide Feedback N Submit Previous Answers Request Answer MacBook Air m X Incorrect; Try Again; 3 attempts remaining 2 G Revie

A 100-turn, 4.0-cm-diameter coil is at rest with its axis vertical. A uniform magnetic field 60° away from vertical increases from 0.50 T to 1.50 T in 0.70 s. You may want to review (Page 836). For help with math skills, you may want to review: The Vector Dot Product Area Calculations for a Circle Part A What is the induced emf in the coil? Express your answer with the appropriate units. ► View Available Hint(s)

▼ Part A Suppose you have a magnetic field with a strongth of 45 uT directed along the m-axis. If a 34 cm x 50 cm wire loop is placed at a 60-degree angle to the z axis before being shifted to a 30-degree angle to the z-axis. what is the difforonce in flux within the loop? Note: 1 Wb= T m². Express your answer in webers. Γ.Γ ΑΣΦ 30-60 2.80.10 6 → C Submit Previous Answers Request Answer X Incorrect; Try Again; One attempt remaining ? Wh

A simple generator has a square armature 9.0 cm on a side. The armature has 95 turns of 0.59-mm-diameter copper wire and rotates in a 0.800-T magnetic field. The generator is used to power a lightbulb rated at 12.0 V and 25.0 W. Part A At what rate should the generator rotate to provide 12.0 V to the bulb? Consider the resistance of the wire on the armature.