You want to use the idea of electromagnetic induction to make the bulb in your small...

Question

Question

You want to use the idea of electromagnetic induction to make the bulb in your small...

You want to use the idea of electromagnetic induction to make the bulb in your small flashlight glow; it glows when the potential difference across it is 1.5 V. You have a small bar magnet and a coil with 100 turns, each with area 2.9

science physics

Add a comment Improve this question Transcribed image text

Answer 1

Answer #1

Faraday's Law.

Voltage induced = # turns x area of coil x dB / dt

solve for dt,

v = 4cm / dt = 80 m/s

Add a comment

Answer 2

Similar Homework Help Questions

You want to use the idea of electromagnetic induction to make the bulb in your small...

You want to use the idea of electromagnetic induction to make the bulb in your small flashlight glow; it glows when the potential difference across it is 1.5 VV. You have a small bar magnet and a coil with 100 turns, each with area 2.6×10−4m22.6×10−4m2. The magnitude of the B⃗ B→ field at the front of the bar magnet's north pole is 4.0×10−2 T4.0×10−2 T and reaches 0 TT when it is about 4.0 cmcm away from the pole. With...
Also, if you happen to have any idea of what book this came out of (or one that has very similar problems) I would GRE...

Also, if you happen to have any idea of what book this came out of (or one that has very similar problems) I would GREATLY appreciate that info. Thanks!! Problem 6. In the figure 1 the coil wound on the ferromagnetic bar moves with speed v with respect to permanent magnet pole N that gives the magnetic flux density B. The coil of N numbers of turns is closed through the load impedance Zi. a) Mark the direction of: We...
To get an idea How big a fraud is supposed you want to make 1.0-F airfield...

To get an idea How big a fraud is supposed you want to make 1.0-F airfield parallel plate capacitor for a circuit you are building. to make it a reasonable size, suppose you limit the plate area to 1.4 cm^2. A) what would the gap have to be between the plates? B) is this practically achievable?

You have a 1.5 m long copper wire. You want to make an N-turn current loop...

You have a 1.5 m long copper wire. You want to make an N-turn current loop that generates a 2.3 mT magnetic field at the center when the current is 2.4 A . You must use the entire wire. What will be the diameter of your coil?
You have two square metal plates with side length of 18.5 cm. You want to make...

You have two square metal plates with side length of 18.5 cm. You want to make a parallel-plate capacitor that will hold a charge of 21.5 nC when connected to a 35.8 V potential difference. Determine the necessary separation in mm. Round your answer to three significant figures.
Constants You have a 1.2 m long copper wire. You want to make an N-turn current...

Constants You have a 1.2 m long copper wire. You want to make an N-turn current loop that generates a 1.5 mT magnetic field at the center when the current is 2.0 A . You must use the entire wire. QUESTION 24.20. Constants ▼ Part A You have a 1.2 m long copper wire. You want to make an N-turn current loop that generates a 1.5 mT magnetic field at the center when the current is 2.0 A·You must use...

All of them 11) 11) The coil of a generator is rotated twice as fast keeping...

All of them 11) 11) The coil of a generator is rotated twice as fast keeping all other factors constant. What happens to the value of the maximum induced emf? A) It is increased by a factor of 4. B) It stays the same. C) It is reduced by a factor of 2 D) It is increased by a factor of 2 E) It is reduced by a factor of 4. 12) The primary codl of a transformer has 100...
You have two square metal plates with side length of 10.50 cm. You want to make...

You have two square metal plates with side length of 10.50 cm. You want to make a parallel-plate capacitor that will hold a charge of 12.5 nC when connected to a 34.8 V potential difference. Determine the necessary separation in mm. Round your answer to three significant figures. please show your work so I can understand the process! Thank you
You have a stock solution that contains 24 mg/ml of protein. You want to make a...

You have a stock solution that contains 24 mg/ml of protein. You want to make a set of standards with the following concentrations: 12 mg/ml, 6 mg/ml, 3 mg/ml and 1.5 mg/ml. You need a minimum of 500 ul of each standard after all dilutions are completed. Using the technique of serial dilution, explain how you would make your standards by filling in the chart below. Std 1 Std 2 Std 3 Std 4 concentration (mg/ml) 12 6 3...

1-1 Suppose you want to make a scale model of a hydrogen atom. You choose, for...

1-1 Suppose you want to make a scale model of a hydrogen atom. You choose, for the nucleus, a small ball bearing with a radius of 1.5 mm. The radius of the hydrogen atom is 0.529 × 10−10 m and the radius of the nucleus is 1.2 × 10−15 m. (a) What would be the radius of the model? (b) Suppose that now you want to make a scale model of the solar system using the same ball bearing as...

You want to use the idea of electromagnetic induction to make the bulb in your small...

Homework Answers