Question

What is ohm's law? Explain for 5 marks.

Answer 1

Ohm's Law says that in an electrical circuit, the current passing through a resistorbetween two points, is related to the voltagedifference between the two points, and are related to the electrical resistance between the two points.

Example) {\displaystyle R={\frac {V}{I}}}

Where I is the current in amperes, V is the potential difference in volts, and R is a constant, measured in ohms, called the resistance.

Current is directly proportional to voltage loss through a resistor. That is, if the current doubles, then so does the voltage. To make a current flow through a resistance there must be a voltage across that resistance. Ohm's Law shows the relationship between the voltage (V), current (I) and resistance (R). It can be written in three ways:

{\displaystyle I={\frac {V}{R}}\quad {\text{or}}\quad V=IR\quad {\text{or}}\quad R={\frac {V}{I}}}.

Answer 2

$\huge{hello}$

Ohm's law gives a relation between current and potential difference .

According to ohm's law at constant temperature then the current flowing through a conductor is directly proportional to potential difference across its end.

$\huge \underline{derivation}$

If I is the current flowing through a conductor and V is the potential difference or Voltage across its end.Then according to ohm's law.

$i \: \infty \: v$
$v \: \infty \: ri$

Here,R is constant called as resistance of conductor

$r \: = \frac{potential \: difference}{current}$

Also the formula is considered at constant temperature.

Where,
R = Resistance ,
V = Potential difference ,
I = Current

$\huge{i \: hope \: helps \: you}$
$\huge{thank \: \: you}$
$\huge{be \: brainly}$