Physics - Flux

The coil has a radius of 8 cm and 110 turns. While moving the magnet farther away from the coil, at a certain point in time, the voltage meter shows -390 mV. What is the magnitude of the rate of change of the flux through the coil?

  1. 👍 0
  2. 👎 0
  3. 👁 177

Respond to this Question

First Name

Your Response

Similar Questions

  1. physics- magnetism

    A step-up transformer used in a car has a potential difference of 10 V across the primary coil with 12 turns. What is the current in the secondary coil of resistance 2.5 Ω if the number of turns in the secondary coil is 54 turns?

    asked by marjean on September 14, 2016
  2. Physics

    Which of the following is correct for a step-down transformer? Number of turns in the primary coil is less than the number of turns in the secondary coil. Step-down transformer increases the voltage from low value to high value.

    asked by Liam on October 22, 2012
  3. physics

    a current of 1.1 A flows through a coil when connected to a 110 V DC source . when 110V -50 Hz AC is applied to the same coil , only 0.5 A current flows . calculate the resistance ,impedance & inductance of the coil.

    asked by Kashyap on November 12, 2018
  4. Physics

    A piece of copper wire has a resistance per unit length of 5.50 x 10^-3 Ω/m. The wire is wound into a thin, flat coil of many turns that has a radius of 0.200 m. The ends of the wire are connected to a 12.0-V battery. Find the

    asked by Anonymous on October 3, 2013
  5. physics prob.

    An ideal transformer has 50 turns in its primary coil and 250 turns in its secondary coil. 12 V is connected to the primary. a)find the voltage across the secondary coil. b) find the current in a 10-ohms device connected to the

    asked by sam on February 14, 2008
  1. physics

    a transformer has 200 turns in its primary coil, the potential difference across the transformer is 220V needs to operate an electrical instrument uses a 110 volts. the number of turns in its secondary coil is: a) 100 turns b) 200

    asked by help physics on August 25, 2012
  2. Physics

    A 0.35 m2 coil with 50 turns rotates at 5 radians per sec2 in a magnetic field of 0.6 Tesla. What is the value of the rms current in the coil if the coil has the resistance of 3.3 Ù? Can you also show me how you got the answer?

    asked by unknown on January 29, 2013
  3. Chemistry

    A step-down transformer has 200 turns of wire in its primary coil. How many turns are in the secondary coil if the input voltage = 120V, and the output voltage = 6V

    asked by Austin on May 16, 2019
  4. Physics

    A coil of wire with 200 circular turns of radius of 3 cm is in a uniform magnetic field along the axis of the coil. the coil has R=40 ohms. At what rate, in Teslas per second, must the magnetic field be changing to induce a

    asked by J on March 3, 2008
  5. physics induced voltage

    A 500 turn solenoid with a length of 20 cm and a radius of 1.5 cm carries a current of 2.0 A. A second coil of four turns is wrapped tightly about this solenoid so that it can be considered to have the same radius as the solenoid.

    asked by Chris Adison on March 30, 2008
  6. physcial science

    If a step-up transformer has a primary coil with 15 turns, how many turns would be required in the secondary coil in order to increase the voltage from 80 volts to 160 volts? A. 8 turns B. 30 turns C. 80 turns D. 160 turns

    asked by sid on October 20, 2015

You can view more similar questions or ask a new question.