Question

VI. Answer the questions:

1. What effects does the current flow produce?

2. How is the heating effect detected?

3. What does the heat produced depend upon?

4. What is called “heat loss”?

5. How is the magnetic effect set up?

6. What is the main condition of the magnetic effect existence?

7. When does the chemical effect occur?

Answer 1

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• When current flows in a circuit it exhibits various effects. The main effects are heating, chemical and magnetic effects. When current flows in a circuit it exhibits various effects. The main effects are heating, chemical and magnetic effects

• James Prescott Joules discovered the heating effect of electric current. ... He was the first one to note that the needle of the compass deflected when a wire coil carrying electric current was brought near the magnetic compass

Answer 2

Answer:

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1. What effects does the current flow produce?

When current flows in a circuit it exhibits various effects. The main effects are heating, chemical and magnetic effects. When current flows in a circuit it exhibits various effects. The main effects are heating, chemical and magnetic effects

2. How is the heating effect detected?

James Prescott Joules discovered the heating effect of electric current. ... He was the first one to note that the needle of the compass deflected when a wire coil carrying electric current was brought near the magnetic compass

3. What does the heat produced depend upon?

The heating effect of an electric current depends on three factors: The resistance, R of the conductor. A higher resistance produces more heat. The time, t for which current flows.

4. What is called “heat loss”?

Thermal Regulation

Convective heat loss is the transfer of heat from a body to moving molecules such as air or liquid. The thin air layer adjacent to the skin is heated by conduction from the body but carries the heat away from the body in the ambient air currents.

5. How is the magnetic effect set up?

As Ampere suggested, a magnetic field is produced whenever an electrical charge is in motion. The spinning and orbiting of the nucleus of an atom produces a magnetic field as does electrical current flowing through a wire. The direction of the spin and orbit determine the direction of the magnetic field.

6. What is the main condition of the magnetic effect existence?

Ferromagnetism is the basic mechanism by which certain materials (such as iron) form permanent magnets, or are attracted to magnets. In physics, several different types of magnetism are distinguished. Ferromagnetism (along with the similar effect ferrimagnetism) is the strongest type and is responsible for the common phenomenon of magnetism in magnets encountered in everyday life.[1] Substances respond weakly to magnetic fields with three other types of magnetism—paramagnetism, diamagnetism, and antiferromagnetism—but the forces are usually so weak that they can be detected only by sensitive instruments in a laboratory. An everyday example of ferromagnetism is a refrigerator magnet used to hold notes on a refrigerator door. The attraction between a magnet and ferromagnetic material is "the quality of magnetism first apparent to the ancient world, and to us today"

7. When does the chemical effect occur?

The passage of an electric current through a conducting solution causes chemical reactions. As a result, bubbles of a gas may be formed on the electrodes. Deposits of metal may be seen on electrodes. Changes of colour of solutions may occur.