# Electric Current Questions and Answers (Q&A)

C. Block, English Professor
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

J. Harty, Writer
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

E. Good
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

E. Good
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

C. Block, English Professor
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

J. Harty, Writer
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

THE ANSWER FOR THE MAGNETIC INDUCTION DUE TO AN INFINITELY LONG STRAIGHT CONDUCTOR PLACED IN A MEDIUM OF PERMIABILITY MUE IS MUE I
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4 Pi a.

C. Block, English Professor
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

C. Block, English Professor
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

J. Harty, Writer
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

Marc