Physics

The dimensions of magnetic field in $$M, L, T$$ and $$C$$ (coulomb) are given as


ANSWER

$$[MT^{-1}C^{-1}]$$


SOLUTION
Force $$F$$ acting on charge $$q$$ moving with velocity $$v$$ in magnetic field $$B$$ is given as $$F=qvB$$ thus $$B=\dfrac {F}{qv}$$
$$\therefore [B]=\dfrac {[F]}{[qv]}=\dfrac {MLT^{-2}}{C\times LT^{-1}}=[MT^{-1}C^{-1}]$$
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 199
Enroll Now For FREE

Realted Questions

Q1 Single Correct Medium
Two resistors $$R_1=\left(3.0 \pm 0.1\right) \Omega$$ and $$R_2 =(6 \pm 0.5) \Omega$$ are connected in parallel. The resistance of the combination is :
  • A. $$(2.0 \pm 0.4)\  \Omega$$
  • B. $$(2.0 \pm 0.1)\  \Omega$$
  • C. $$(2.0 \pm 0.2)\  \Omega$$
  • D. $$(2.00 \pm 0.4)\  \Omega$$

Asked in: Physics - Units and Measurement


1 Verified Answer | Published on 18th 08, 2020

View Answer
Q2 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
Q3 Single Correct Medium
If the values of force and length are increased four times, then the unit of energy will be increase by:
  • A. $$4 \ times$$
  • B. $$2 \ times$$
  • C. $$8 \ times$$
  • D. $$16 \ times$$

Asked in: Physics - Units and Measurement


1 Verified Answer | Published on 18th 08, 2020

View Answer
Q4 Single Correct Medium
The relation between the energy $$E$$ and the frequency $$v$$ of a photon is expressed by the equation $$E=h\nu$$, where $$h$$ is Planck's constant. Write down the dimensions of $$h$$?
  • A. $$\displaystyle \left [ ML^{-2}T^{-1} \right ]$$
  • B. $$\displaystyle \left [ ML^{1}T^{-1} \right ]$$
  • C. $$\displaystyle \left [ ML^{1}T^{-2} \right ]$$
  • D. $$\displaystyle \left [ ML^{2}T^{-1} \right ]$$

Asked in: Physics - Units and Measurement


1 Verified Answer | Published on 18th 08, 2020

View Answer
Q5 Single Correct Medium
Dimensional formula of Torque is:
  • A. $${ MLT }^{ -2 }$$
  • B. $${ ML }^{ 2 }{ T }^{ -2 }$$
  • C. $${ ML }^{ 2 }{ T }^{ -3 }$$
  • D. $${ MLT }^{ -3 }$$

Asked in: Physics - Units and Measurement


1 Verified Answer | Published on 18th 08, 2020

View Answer