Physics

If voltage V=(100 $$\pm $$ 5) V and current I=(10 $$\pm $$ 0.2) A, the percentage error in resistance R is 


ANSWER

$$7$$%


SOLUTION

View Answers

You're just one step away

Create your Digital Resume For FREE on your name's sub domain "yourname.wcard.io". Register Here!


Single Correct Medium Published on 18th 08, 2020
Next Question
Questions 244531
Subjects 8
Chapters 125
Enrolled Students 218
Enroll Now For FREE

Realted Questions

Q1 Single Correct Medium
The dimensional formula for permittivity of free space $$(\epsilon_{0})$$ in the equation $$F = \dfrac {1}{4\pi \epsilon_{0}} \dfrac {q_{1}q_{2}}{r^{2}}$$ where, symbols have their usual meaning is
  • A. $$[M^{1}L^{3}A^{-2}T^{-4}]$$
  • B. $$[M^{-1}L^{-3}T^{4}A^{2}]$$
  • C. $$[M^{-1}L^{-3}A^{-2}T^{-4}]$$
  • D. $$[M^{1}L^{3}A^{2}T^{-4}]$$

Asked in: Physics - Units and Measurement


1 Verified Answer | Published on 18th 08, 2020

View Answer
Q2 Subjective Medium
A thermometer placed  under the armpit always shows a lower value than the actual body temperature. Which type of error is demonstrated in its measurement.

Asked in: Physics - Units and Measurement


1 Verified Answer | Published on 18th 08, 2020

View Answer
Q3 Single Correct Medium
The breadth of a thin rectangular sheet is measured as $$10.1\ cm$$. The approximate error in the measurement is
  • A. $$\pm 1\%$$
  • B. $$\pm 0.5\%$$
  • C. $$\pm 0.1\%$$
  • D. $$\pm 5\%$$

Asked in: Physics - Units and Measurement


1 Verified Answer | Published on 18th 08, 2020

View Answer
Q4 Single Correct Medium
Which of the following does not have the same dimension?
  • A. Electric flux, Electric field, Electric dipole moment
  • B. Pressure, stress, Young's modulus
  • C. Electromotive force, Potential difference, Electric voltage
  • D. Heat, Potential energy, Work done

Asked in: Physics - Units and Measurement


1 Verified Answer | Published on 18th 08, 2020

View Answer
Q5 Single Correct Medium
The velocity $$v$$ of a particle at time$$ t$$ is given by $$\displaystyle v = at + \frac {b} {t + c} $$ where $$a, b$$ and $$c$$ are constants. The dimensions of $$a, b$$ and $$c$$ are respectively :
  • A. $$ LT^{-2}\, , L $$ and $$\displaystyle T $$
  • B. $$ L^{2}\, , T $$ and $$\displaystyle LT^{2} $$
  • C. $$ LT^{2}\, , LT $$ and $$\displaystyle L $$
  • D. $$ L\, , LT $$ and $$\displaystyle T^{2} $$

Asked in: Physics - Units and Measurement


1 Verified Answer | Published on 18th 08, 2020

View Answer