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A 5–ampere fuse wire can withstand amaximum power of 1 watt in the circuit. Theresistance of the fuse wire is [2005]
  • a)
    0.04 ohm
  • b)
    0.2 ohm
  • c)
    5 ohm
  • d)
    0.4 ohm
Correct answer is option 'A'. Can you explain this answer?
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A 5–ampere fuse wire can withstand amaximum power of 1 watt in t...
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A 5–ampere fuse wire can withstand amaximum power of 1 watt in t...
- **Given data**
A 5-ampere fuse wire can withstand a maximum power of 1 watt in the circuit.
- **Calculating resistance**
We know that power (P) = I^2 * R, where I is the current and R is the resistance. Given that the fuse wire can withstand a maximum power of 1 watt and current is 5 amperes, we can calculate the resistance using the formula R = P / I^2.
- **Calculating resistance**
Plugging in the values, we get R = 1 / 5^2 = 1 / 25 = 0.04 ohms.
- **Final answer**
Therefore, the resistance of the fuse wire is 0.04 ohms, which corresponds to option 'A'.
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A 5–ampere fuse wire can withstand amaximum power of 1 watt in the circuit. Theresistance of the fuse wire is [2005]a)0.04 ohmb)0.2 ohmc)5 ohmd)0.4 ohmCorrect answer is option 'A'. Can you explain this answer?
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