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  1. Electricity
  2. Electric Current

Electric Current Questions and Answers (Q&A)

What are the 2 types of electricity?
Jagran josh
Answered: Dec 22, 2024

C

1 Answer

2672 views
What units are used to measure current?
E. Good
Answered: Dec 17, 2018
The SI unit for metering an electric current is the ampere, which is the stream of electrical charge across a surface at the ratio of one coulomb for every second. Electric current is gauged...Read More

1 Answer

1133 views
What is the definition of Biot-Savart Law?
C. Block, English Professor
Answered: Dec 17, 2018
The Biot Savart law is an expression of the magnetic field produced by a steady electric current. Deriving this law entails starting from Maxwell's equations, obtaining and solving...Read More

1 Answer

514 views
What is Ampere's force law?
C. Block, English Professor
Answered: Dec 17, 2018
Ampere's force law presents that the force of attraction or repulsion between the two wires carrying currents is equivalent to their lengths and the magnitude of current passing through them. If...Read More

1 Answer

493 views
Why does current passing through a wire create a magnetic field?
J. Harty, Writer
Answered: Dec 17, 2018
Current flowing in a wire produces a magnetic field around the wire. In a coil, the field from the adjacent turns is the same direction, so it adds up. That is why a coil of wire makes a much...Read More

1 Answer

416 views
Are voltage and current inversely proportional?
C. Block, English Professor
Answered: Dec 17, 2018
Voltage and current tend to be proportional. It is better to understand that voltage is the force that causes the current, which is the electromotive force. Energy is pushed like pressure pushes...Read More

1 Answer

367 views
What kind of heating do electric currents cause?
E. Good
Answered: Dec 17, 2018
Joule heating, also known as resistive heating, is caused by electrical currents. It is used in incandescent light bulbs, which are phasing out and being replaced by different types of lighting...Read More

1 Answer

365 views
How is Biot-Savart law derived?
C. Block, English Professor
Answered: Dec 17, 2018
This law was named after Jean Baptist Biot and Felix Savart in 1820. The Biot Savart law is an equation that illustrates the magnetic field made by a current carrying wire, permitting the...Read More

1 Answer

330 views
How is current in a circuit measured?
C. Block, English Professor
Answered: Dec 17, 2018
To measure current, you must place the two leads of the ammeter in the circuit so that the current flows through the ammeter. The ammeter must become the part of the circuit itself. The only way...Read More

1 Answer

299 views
What is induced current?
J. Harty, Writer
Answered: Dec 17, 2018
A current can be generated into a conducting loop if it is exposed to a charging magnetic field. You can alter the strength of the magnetic field, move the conductor in and out of the field, and...Read More

1 Answer

297 views
How does current flow through a medium?
J. Harty, Writer
Answered: Dec 17, 2018
The stream or rate of electric charge in a conductor or medium between two points having a deviation in potential is generally expressed in amperes. Current flow is due to the difference of...Read More

1 Answer

275 views

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