These questions are about Faraday's Law and Lenz's Law (DC circuit) 1. Why is the magnitude...

These questions are about Faraday's Law and Lenz's Law (DC circuit)

1. Why is the magnitude of the induced current larger when a magnet or some other primary source moves to the coil fast?

2. Does a higher EMF (voltage) increase or decrease induced current? What about the opposite?

3. How does the number of loops affect induced current? Does a higher area of a loop increase induced current?

4. What source of energy causes induced current?

Expert Solution

genius_generous answered 2 years ago

Discuss Lenz's Law in terms of Faraday's Law and induced current (Requires website source)

Topic: Magnetism and electromagnetic induction, faraday's law, lenz's law Question: A magnet is held a little...

Topic: Magnetism and electromagnetic induction, faraday's law, lenz's law Question: A magnet is held a little above the top of a coil. It is then dropped into and through the loop, north side facing down, and caught as it exits the loop. Assuming the magnet never touched the loop (zero friction), would its velocity after falling through the loop be greater, smaller, or the same as if it had been dropped freely (not through the loop)? Explain your answer using...

Use Lenz's law to answer the following questions concerning the direction of induced currents.

Use Lenz's law to answer the following questions concerning the direction of induced currents. Express your answers in terms of the letter labels a and b in each part of the figure below. (a) What is the direction of the induced current in the resistor R in Figure a when the bar magnet is moved to the left? a to b b to a The magnitude is zero. (b) What is the direction of the current induced in the resistor R after the switch S...

Faraday's Law: What would you observe about the amplitude of an induced signal as the frequency...

Faraday's Law: What would you observe about the amplitude of an induced signal as the frequency varied? Describe whether the behavior is consistenent with Eq. 3 (Vo= w(Nd)A(Bo)cos(theta)). In particular what should your graph of amplitudes against frequencies look like according to Eq 3? In comparisons with the predictions of Eq 3, why would it be important to adjust the function generator to keep the amplitude of the B field the same at each frequency?

Write a literature survey about DC power supply circuit and audio amplifier circuit to preform a...

Write a literature survey about DC power supply circuit and audio amplifier circuit to preform a speaker?

1. the use of Amplifier Loading in a circuit.? 2. the DC operation of a BJT...

1. the use of Amplifier Loading in a circuit.? 2. the DC operation of a BJT using an equivalent model in terms of base current (master) and output current (slave) loops.

MACHINES ONE LAB TEST QUESTIONS. QUESTION 1. (a) Why are the exciters poles in DC machines...

MACHINES ONE LAB TEST QUESTIONS. QUESTION 1. (a) Why are the exciters poles in DC machines broad ended? (b) Why is the armature of a DC machine always made to be the rotor? (c) Give three main advantages of transformers no load and short-circuit tests. Include circuit diagrams (d) Explain why the short-circuit test is said to help determine the full-load copper losses. Use elaborate labelled diagram as well as formulas in your explanation. (e) Explain why Zambia electricity supply...

Please answer the following questions about the pictured circuit. A circuit with two batteries, and two...

Please answer the following questions about the pictured circuit. A circuit with two batteries, and two loops (three loops if you count the outer loop). The central section has resistor of 5-ohms. The left loop has a 10-V battery with its positive terminal facing up and 5-ohm resistor. The right loop has a 15_V battery with its positive terminal facing down and the third 5-ohm resistor. The current through the 15.0-V battery is I15 = 8 3 A = 2.667...

Problem 1 Why is it preferable to use the DC voltage in the transmission and distribution...

Problem 1 Why is it preferable to use the DC voltage in the transmission and distribution of electrical energy than the AC voltage? Use references

In an LC circuit, the angular frequency is ω = √1/LC. Explain why an LC circuit...

In an LC circuit, the angular frequency is ω = √1/LC. Explain why an LC circuit with a larger inductance or a larger capacitance will oscillate more slowly. Make your explanation based on physics, not mathematics.

Question