Advertisements
Advertisements
प्रश्न
An electric bulb draws 1.2 A current at 6.0 V. Find the resistance of filament of bulb while glowing.
Advertisements
उत्तर
Current (I) = 1.2 A
Potential Difference/Voltage (V) = 6.0 V
Resistance (R) = ?
According to Ohm's Law:
V = IR
Then R = `"V"/"I"`
R = `6/1.2`
R = 5 Ω
APPEARS IN
संबंधित प्रश्न
What is an Ohmic resistor?
What is an ohmic resistor? Give one example of an ohmic resistor. Draw a graph to show its current voltage relationship. How is the resistance of the resistor determined from this graph?
A wire of resistance 3 ohm and length 10 cm is stretched to length 30 cm. Assuming that it has a uniform cross section, what will be its new resistance?
In the circuit shown in the figure, find the total resistance of the circuit and the current in the arm AD.

Define the following:
Coulomb
Explain the equivalent resistance of a parallel resistor network.
The resistance of a nichrome wire at 0°C is 10Ω. If its temperature coefficient of resistivity of nichrome is 0.004/ °C, find its resistance of the wire at boiling point of water. Comment on the result.
What is meant by resistance of a conductor ? Define its SI unit.
A current of 0.8 A flows in a conductor of 40 Ω for 1 minute. The heat produced in the conductor will be ______.
