Advertisements
Advertisements
प्रश्न
Which of the following is an ohmic resistance?
विकल्प
LED
Junction diode
Filament of a bulb
Nichrome wire
Advertisements
उत्तर
Nichrome wire
Hint: Substances that obey Ohm's law are called Ohmic resistors.
APPEARS IN
संबंधित प्रश्न
Ohm's law gives a relationship between:
(a) current and resistance
(b) resistance and potential difference
(c) potential difference and electric charge
(d) current and potential difference
Four resistances of 16 ohms each are connected in parallel. Four such combinations are connected in series. What is the total resistance?
In a conductor 6.25 × `10^16` electrons flow from its end A to B in 2 s. Find the current flowing through the conductor (e = 1.6 × `10^-19` C)
An electric bulb draws 1.2 A current at 6.0 V. Find the resistance of filament of bulb while glowing.
In the circuit shown in the figure, find the total resistance of the circuit and the current in the arm AD.
Two metallic spheres A and B kept on insulating stands are in contact with each other. A positively charged rod P is brought near the sphere A as shown in the figure. The two spheres are separated from each other, and the rod P is removed. What will be the nature of charges on spheres A and B?
The ratio of the potential difference to the current is known as ________.
An electronics hobbyist is building a radio which requires 150 Ω in her circuit, but she has only 220 Ω, 79 Ω, and 92 Ω resistors available. How can she connect the available resistors to get the desired value of resistance?
The mathematical form of Ohm's Law is:
If the voltage across a conductor is increased while its temperature remains unchanged, what happens to the current flowing through it?
