## Labels

### Quiz Physics : MCQ on Electric Field Part 1

Q1 Force acting on a stationary point charge q in an electric field E is

• q^{2}E
• \frac{q}{E}
• qE
• \frac{E}{q}

qE

Q2 Electric field intensity due to a source charge at a distance r varies as

• r
• r^{2}
• r^{-2}
• r^{-1}

• r^{-2}
•

Q3 Dimensional formula of electric field is

• MLT^{-3}A^{-1}
• MLT^{-2}A^{-1}
• ML^{2}T^{-2}A^{-1}
• MLT^{2}A^{-1}

MLT^{-3}A^{-1}

Q4 The electric field E at a point just outside a perfect conductor is

• parallel to surface
• zero
• perpendicular to surface
• any direction

perpendicular to surface

Q5 The electric field inside a spherical shell of uniform surface charge density

• Zero
• constant less than zero
• directly proportional to distance from center
• None of these

Zero

Q6 which of the following is deflected by a electric field

• neutrons
• alpha particles
• gamma rays
• all of these

alpha particle

Q7 An electron and a proton are in a uniform electric field. The ratio of their accelerations will be

• Zero
• unity
• \frac{m_p}{m_e}
• \frac{m_e}{m_p}

• \frac{m_p}{m_e}
•

Q8 an electron enters in the electric field with its velocity in direction of electric field then

• path of electrons will be circle
• path of electrons will be parabola
• velocity of electrons will decrease
• velocity of electrons will increase

path of electrons will be parabola

Q9 an electron having charge e and mass m moving in a uniform electric field E. Its acceleration will be

• \frac{e^2}{m}
• \frac{E^2}{m}e
• \frac{eE}{m}
• \frac{mE}{e}

\frac{eE}{m}

Q10 what is the angle between the electric dipole moment and electric field strength due to it on equatorial line?

• Zero
• 90^{0}
• 180^{0}
• none of these

180^{0}

### ELECTRIC DIPOLE NOTES: ELECTRIC DIPOLE , DIPOLE LENGTH, ELECTRIC FIELD DUE TO ELECTRIC DIPOLE

Electric Dipole: It is a  system of equal and opposite charges separated by some  fixed distance. DIPOLE LENGTH : the distance AB = 2a is ...