Unit of moment of inertia in MKS system
1. kg×cm2kg×cm2
2. kg/cm2kg/cm2
3. kg×m2kg×m2
4. Joule×mJoule×m
Unit of stress is:
1. NmNm
2. N-mN-m
3. Nm2Nm2
4. N-m2N-m2
Unit of magnetic moment is
1. Ampere−metre2Ampere−metre2
2. Ampere−metreAmpere−metre
3. Weber−metre2Weber−metre2
4. Weber/metreWeber/metre
Curie is a unit of
1. Energy of γγ-rays
2. Half life
3. Radioactivity
4. Intensity of γγ-rays
Hertz is the unit of
1. Frequency
2. Force
3. Electric charge
4. Magnetic flux
One pico Farad is equal to
1. 10−24F10−24F
2. 10−18F10−18F
3. 10−12F10−12F
4. 10−6F10−6F
In SI, Henry is the unit of
1. Self inductance
2. Mutual inductance
3. (1) and (2) both
4. None of the above
The unit of e.m.f.e.m.f. is
1. Joule
2. Joule-Coulomb
3. Volt–Coulomb
4. Joule/Coulomb
Unit of self inductance is [This question includes concepts from 12th syllabus]
1. Newton-secondCoulomb×AmpereNewton−secondCoulomb×Ampere
2. Joule/Coulomb×SecondAmpereJoule/Coulomb×SecondAmpere
3. Volt×metreCoulombVolt×metreCoulomb
4. Newton×metreAmpereNewton×metreAmpere
To determine Young's modulus of a wire, the formula is Y=FA×LΔL; where L = length, A = area of cross-section of the wire, ΔL=change in length of the wire when stretched with a force F. The conversion factor to change it from CGS to MKS system is
1. 1
2. 10
3. 0.1
4. 0.01