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प्रश्न
Tick(✓) the correct choice in the following:
Ohm's law is applicable to
विकल्प
Discharge of electricity through gases
Diode value
All metallic conductors
Carbon compounds
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उत्तर
All metallic conductors
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संबंधित प्रश्न
Name the physical quantity whose unit is "ohm".
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.
How much energy is consumed when a current of 5 amperes flows through the filament (or element) of a heater having resistance of 100 ohms for two hours? Express it in joules.
- Draw a V-I graph for a conductor obeying Ohm’s law.
- What does the slope of V–I graph for a conductor represent?
A wire of resistance 9 ohm having length 30 cm is tripled on itself. What is its new resistance?
How would you connect two resistors in series? Draw a diagram. Calculate the total equivalent resistance.
Fig. represents the circuit used for the verification of Ohm's law. Label the parts from A to F. state the function of each.
A student carries out an experiment and plots the V-I graph of three samples of nichrome wire with resistances R1, R2 and R3 respectively. Which of the following is hue?
How is electric current related to the potential difference across the terminals of a conductor?
Draw a labelled circuit diagram to verify this relationship.
Why should an ammeter have low resistance?
