2018 PHY204 Electromagnetism TMA3 question and answer

question 1 Ceramic capacitors are useful in____ circuit?

Answer is transistor

Question 2 if epsilon is here elective permittivity of a dielectric material the electric susceptibility x is related to is related to epsilon by the equation?

Answer is X=$\epsilon_1$

Question 3 when a dielectric slab is placed in an external electric field unit microscopic the (polarizing) fields inside the material is_____ the external field?

Answer is less than

Question 4 the correct dimensions of polarization is_______?

Answer is charge / length squared

Question 5 magnetic properties of material are completely specified by the following quantity accept one______?

Answer is orientation

Question 6 find the charge on 100pf capacitor when charged voltage of 24v

Answer is 0.024

Question 7 example of non polar molecule is______?

Answer is hydrogen

Question 8 a neutral molecule placed in an electric field becomes______?

Answer is polarized

Question 9 the refractive index of some substance can be determined by_______?

Answer is optical method

Question 10 in the absence of external magnetic field which atom of a magnetic soft and has a vector sum of magnetic moment of all the electronic orbit zero is____theory ?

answer is