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?
Four resistances of 16 ohms each are connected in parallel. Four such combinations are connected in series. What is the total resistance?
A wire of resistance 9 ohm having length 30 cm is tripled on itself. What is its new resistance?
What is non-ohmic resistor?
Choose the correct alternative.
Which of the following is an ohmic conductor?
Answer the following question.
Distinguish between Ohmic and non-ohmic substances; explain with the help of example.
SI unit of resistance is:
Define Current density.
Suppose there is a circuit consisting of only resistances and batteries and we have to double (or increase it to n-times) all voltages and all resistances. Show that currents are unaltered. Do this for circuit of Example 3.7 in the NCERT Text Book for Class XII.
A resistor is connected in a circuit with a voltage of 12 V and a resistance of 24 Ω. What is the current flowing through the resistor?
