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प्रश्न
The ratio of the potential difference to the current is known as ________.
उत्तर
The ratio of the potential difference to the current is known as Ohm’s law.
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संबंधित प्रश्न
Name the unit of electrical resistance and give its symbol.
When a 12 V battery is connected across an unknown resistor, there is a current of 2.5 mA in the circuit. Calculate the value of the resistance of the resistor.
What is non-ohmic resistor?
What is non ohmic device?
Which of the following is correct for V-I graph of a good conductor?
The unit of specific resistance is ____________.
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How is electric current related to the potential difference across the terminals of a conductor?
Draw a labelled circuit diagram to verify this relationship.
A current of 0.8 A flows in a conductor of 40 Ω for 1 minute. The heat produced in the conductor will be ______.
Vinita and Ahmed demonstrated a circuit that operates the two headlights and the two sidelights of a car, in their school exhibition. Based on their demonstrated circuit, answer the following questions.
- State what happens when switch A is connected to:
a) Position 2
b) Position 3 - Find the potential difference across each lamp when lit.
- Calculate the current.
a) in each 12 Ω lamp when lit.
b) In each 4 Ω lamp when lit.
OR - Show, with calculations, which type of lamp, 4.0 Ω or 12 Ω, has the higher power.
