Home
Class 9
PHYSICS
A bulb draws current 1.5 A at 6.0 V. Fin...

A bulb draws current 1.5 A at 6.0 V. Find the resistance of filament of bulb while glowing.

Text Solution

AI Generated Solution

To find the resistance of the filament of the bulb while glowing, we can use Ohm's Law, which states that: \[ V = I \times R \] Where: - \( V \) is the voltage across the bulb (in volts), - \( I \) is the current flowing through the bulb (in amperes), - \( R \) is the resistance of the filament (in ohms). ...
Promotional Banner

Topper's Solved these Questions

  • ELECTRICITY AND MAGNETISM

    ICSE|Exercise TOPIC 1 Electric Circuit (3 Marks Questions )|9 Videos

  • ELECTRICITY AND MAGNETISM

    ICSE|Exercise TOPIC 1 Electric Circuit (4 Marks Questions )|9 Videos

  • CURRENT ELECTRICITY

    ICSE|Exercise Exercise-9(C ) Multiple choice|2 Videos

  • FLUIDS

    ICSE|Exercise TOPIC 2 (4 Marks Questions ) |16 Videos

Similar Questions

Explore conceptually related problems

An electric bulb draws 1.2 A current at 6V. Find the resistance of the filament of the bulb while glowing

A car bulb connected to a 12 volt battery draws 2 A current when glowing . What is the resistance of the filament of the bulb ? Will the resistance be more, same or less when the bulb is not glowing ?

A cell of potential difference 12 V is connected to a bulb. The resistance of filament of bulb when it glows is 24 Omega . Find the current drawn from the cell.

A cell is connected to a bulb which develops a potential difference of 12 volt across it. The current in circuit is measured to be 2 ampere. Find the resistance offered by the filament of bulb to the flow of current.

An electric bulb rated '220 V, 60 W' glows when connected with 220 V mains. Find the resistance of the filament of the bulb.

A light bulb has the rating 200W 220V. Find (i) resistance of the bulb filament (ii) rms value of current flowing through the filament.

A light bulb is rated at 100 W for a 220 V supply. Find (a) the resistance of the bulb. (b) the peak voltage of the source (c ) the rms current through the bulb.

(a) How much current will an electric bulb draw from a 220 V source, if the resistance of the bulb filament is 1200 Omega ? (b) How much current will an electric heater draw from a 220 V source, if the resistance of the heater coil is 100 Omega ?

A house is fitted with seven tubelights of rating 220 V, 40 W each , two bulbs of rating 220 V, 60 W each, five fans each drawing a current of 0.4 A at 220 V , and a heater of resistance 48.4 Omega . The main line power supplied to the house is at 220 V . Calculate the bill for the month of january if tubelights and bulbs are used for 6 h daily, fans for 1 h daily , and heater for 10 h daily. The electricity is to cost Rs. 2 per unit.

The voltage across a bulb is decreased by 2%. Assuming that the resistance of the filament remains unchanged, the power of the bulb will