SATHEE: Physics And Measurement Question 181

Physics And Measurement Question 181

Question: According to Joule’s law of heating, heat produced $H = I^{2}$ Rt, where I is current, R is resistance and t is time. If the errors in the measurement of I, R and t are 3%, 4% and 6% respectively then error in the measurement of H is

Options:

A) $\pm$ 17%

B) $\pm$ 16%

C) $\pm$ 19%

D) $\pm$ 25%

Show Answer

Answer:

Correct Answer: B

Solution:

$H = I^{2} R t$

$∴ \frac{Δ H}{H} \times 100 = (\frac{2 Δ I}{I} + \frac{Δ R}{R} + \frac{Δ t}{t}) \times 100$

$= (2 \times 3 + 4 + 6)$ %

$= 16$ %

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Physics And Measurement Question 181

Question: According to Joule’s law of heating, heat produced $H = I^{2}$ Rt, where I is current, R is resistance and t is time. If the errors in the measurement of I, R and t are 3%, 4% and 6% respectively then error in the measurement of H is

Options:

Answer:

Solution:

इंजीनियरिंग की तैयारी

चिकित्सा तैयारी

एनसीईआरटी पुस्तकें और समाधान

महत्वपूर्ण संसाधन

अन्य संसाधन

पाठ्यक्रम

परीक्षा मंच

नमूना मॉक टेस्ट

सदस्यता

एनसीईआरटी व्यायाम वीडियो समाधान

Physics And Measurement Question 181

Question: According to Joule’s law of heating, heat produced H=I2 Rt, where I is current, R is resistance and t is time. If the errors in the measurement of I, R and t are 3%, 4% and 6% respectively then error in the measurement of H is

Options:

Answer:

Solution:

इंजीनियरिंग की तैयारी

चिकित्सा तैयारी

एनसीईआरटी पुस्तकें और समाधान

महत्वपूर्ण संसाधन

अन्य संसाधन

पाठ्यक्रम

परीक्षा मंच

नमूना मॉक टेस्ट

सदस्यता

एनसीईआरटी व्यायाम वीडियो समाधान

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Question: According to Joule’s law of heating, heat produced $H = I^{2}$ Rt, where I is current, R is resistance and t is time. If the errors in the measurement of I, R and t are 3%, 4% and 6% respectively then error in the measurement of H is