What are the applications of ohm's law used in daily life?

Ohm’s law states that voltage across a conductor is proportional to the current flowing through it, provided all physical conditions and temperature stays constant.

Applications of Ohm’s law in daily life

The speed of fans in our houses can be regulated by shifting the regulator too and fro. The current flowing through the fan is managed by controlling the resistance through the regulator. The resistance, current, and power can therefore be calculated by Ohm’s law for any input value.
Electric kettles and irons contain a lot of resistors that restrict the flow of current through them to produce heat. The size of resistors can be defined by Ohm’s law.
Electrical heaters contain a metal coil of high resistance allowing a specific amount of current to pass through to provide the heat. The power of heaters can be determined through Ohm’s law.

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CBSE CLASS XII Related Questions

1.
Write two advantages of reflecting telescope over refracting telescope.

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2.
A student sets up the circuit as shown in the figure to find the value of unknown resistance X and records a set of readings of the voltmeter and the ammeter by using the rheostat.

3.
Read the following paragraph and answer the questions that follow.
A p-type or n-type semiconductor can be converted into a p-n junction by doping it with suitable impurity. The motion of majority charge carriers causes diffusion current across the junction while the barrier electric field causes motion of minority carriers for drift current. In case of unbiased diode, the diffusion and drift currents are equal. This equilibrium is disturbed by the biasing batteries. Diodes, therefore, allow currents in one direction. This property of diode is used in making rectifiers.

4.
Two air-filled capacitors of capacitances $C_1$ and $C_2$ are connected in parallel with a dc battery. After the capacitors are fully charged, a slab of dielectric constant K is inserted between the plates of each capacitor. How will the (i) charge on each capacitor and (ii) energy stored in the capacitor affected after the slab is introduced.

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5.
This ‘average velocity’ is found be few mm/s for currents in range of a few amperes. How then is current established almost the instant a circuit is closed ?

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6.
In a telescope the objective has much larger aperture than the eye piece. Why ?

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What are the applications of ohm's law used in daily life?

Applications of Ohm’s law in daily life

Related Questions

CBSE CLASS XII Related Questions

1.
Write two advantages of reflecting telescope over refracting telescope.

2.
A student sets up the circuit as shown in the figure to find the value of unknown resistance X and records a set of readings of the voltmeter and the ammeter by using the rheostat.

5.
This ‘average velocity’ is found be few mm/s for currents in range of a few amperes. How then is current established almost the instant a circuit is closed ?

6.
In a telescope the objective has much larger aperture than the eye piece. Why ?

Similar Physics Concepts

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What are the applications of ohm's law used in daily life?

Applications of Ohm’s law in daily life

Related Questions

CBSE CLASS XII Related Questions

1.Write two advantages of reflecting telescope over refracting telescope.

2.A student sets up the circuit as shown in the figure to find the value of unknown resistance X and records a set of readings of the voltmeter and the ammeter by using the rheostat.

5.This ‘average velocity’ is found be few mm/s for currents in range of a few amperes. How then is current established almost the instant a circuit is closed ?

6.In a telescope the objective has much larger aperture than the eye piece. Why ?

Similar Physics Concepts

Comments

SUBSCRIBE TO OUR NEWS LETTER

1.
Write two advantages of reflecting telescope over refracting telescope.

2.
A student sets up the circuit as shown in the figure to find the value of unknown resistance X and records a set of readings of the voltmeter and the ammeter by using the rheostat.

5.
This ‘average velocity’ is found be few mm/s for currents in range of a few amperes. How then is current established almost the instant a circuit is closed ?

6.
In a telescope the objective has much larger aperture than the eye piece. Why ?