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प्रश्न
A current of 0.8 A flows in a conductor of 40 Ω for 1 minute. The heat produced in the conductor will be ______.
विकल्प
1445 J
1536 J
1569 J
1640 J
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उत्तर
A current of 0.8 A flows in a conductor of 40 Ω for 1 minute. The heat produced in the conductor will be 1536 J.
Explanation:
From Ohm's law, we know that
V = IR
Given: I = 0.8 A, R = 40 Ω, t = 1 min (60 sec)
Now, V = I.R
V = 0.8 × 40
V = 32 volt
Power, P = V × I
P = 32 × 0.8
P = 25.6 watt
Heat = P × t
Heat = 25.6 × 60
Heat = 1536 J
संबंधित प्रश्न
What will be the change in the current if the potential difference is kept constant and the resistance of the circuit is made four times?
- It will remain unchanged.
- It will become four times.
- It will become one-fourth.
- It will become half.
The relationship between the potential difference and the current in a conductor is stated in the form of a law.
- Name the law.
- What does the slope of V-I graph for a conductor represent?
- Name the material used for making the connecting wire.
A wire has a length of 2.0 m and a resistance of 5.0 Ω. Find the electric field existing inside the wire if it carries a current of 10 A.
Define the following:
Coulomb
State the limitations of Ohm’s law.
Choose the correct alternative.
Which of the following is an ohmic conductor?
The mathematical form of Ohm's Law is:
From Ohm's Law, since \[I \propto V\], the constant ratio \[\frac{V}{I}\] is defined as:
What is the nature of the graph obtained when potential difference is plotted against current for an Ohmic conductor?
