Physics

If $$I$$ is regarded as the fourth dimension, then the dimensional formula of charge in terms of current $$I$$ is


ANSWER

$$[IT]$$


SOLUTION
An electric current is defined as a rate of flow of electric charge q.
So, $$I=\dfrac {q}{t}$$ or $$[q]=[IT]$$
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 202
Enroll Now For FREE

Realted Questions

Q1 Single Correct Medium
The dimensional formula for thermal resistance is
  • A. $$\left [ ML^{2}T^{-3}K^{-1} \right ]$$
  • B. $$\left [ ML^{2}T^{-2}A^{-1} \right ]$$
  • C. $$\left [ ML^{2}T^{-3}K^{-2} \right ]$$
  • D. $$\left [ M^{-1}L^{-2}T^{3}K \right ]$$

Asked in: Physics - Units and Measurement


1 Verified Answer | Published on 18th 08, 2020

View Answer
Q2 Single Correct Medium
The rate of flow of a liquid Q through a capillary tube depends upon the pressure gradient ($$\dfrac{P}{l}$$), radius of the capillary ($$r$$), coefficient viscosity $$\eta$$ and constant of proportionality is $$\dfrac{\pi }{8} $$. The equation for the rate of flow of the liquid Q is given by :
  • A. $$Q=\dfrac { { \pi pr }^{ 2 } }{ 8\eta l } $$
  • B. $$Q=\dfrac { { \pi pr }^{ 4 } }{ 8\eta l } $$
  • C. $$Q=\dfrac { \pi }{ 8 } { pr }^{ 2 }{ \eta }^{ 2 }l $$
  • D. $$Q=\dfrac { 8\eta l }{ { \pi pr }^{ 4 } } $$

Asked in: Physics - Units and Measurement


1 Verified Answer | Published on 18th 08, 2020

View Answer
Q3 Single Correct Medium
Mass of a substance measured by the student is $$1.56,1.60,1.62,1.52 , \mathrm { gm }$$.The average absolute error in the measurement is
  • A. $$0.03 \mathrm { gm }$$
  • B. $$0.02 \mathrm { gm }$$
  • C. $$0.89 \mathrm { gm }$$
  • D. $$0.2 \mathrm { gm }$$

Asked in: Physics - Units and Measurement


1 Verified Answer | Published on 18th 08, 2020

View Answer
Q4 Subjective Medium
What do you understand by the term unit?

Asked in: Physics - Units and Measurement


1 Verified Answer | Published on 18th 08, 2020

View Answer
Q5 Subjective Medium
Name the three convenient units used to measure length ranging from very short to very long value. How are they related to the S.I. unit?

Asked in: Physics - Units and Measurement


1 Verified Answer | Published on 18th 08, 2020

View Answer