Physics X Day 2

In a concave mirror, the image size depends upon:

• size of the object
• position of the object
• the shape of the object
• area covered by the object

Ohm's law is not applicable to?

• semiconductor
• D.C. circuits
• small resistors
• high currents

The S.I unit of electric current is?

• Coulomb
• volt
• ampere
• N / C"

potential difference is measured in?

• volt
• Coulomb
• ampere
• N/C"

1 ohm = ______

• 1 volt / 1 ampere
• 1 ampere / 1 volt
• 1 volt / 1 coulomb
• 1 coulomb / 1 volt

The resistivity of the material ρ is measured in:

• Ω−2
• Ω−1
• Ωm
• Ωm−1

Branch of physics which deals with the charges at rest is called?

• Electricity
• Electrostatic
• Quantum
• Magnetism

The S.I unit of electrostatic potential is:

• Coulomb
• volt
• Newton
• Newton per Coulomb

Equation of capacitor is?

• Q = CV
• C = QV
• V = QC
• C = FV

1 Farad = ______

• 1 Newton / volt
• 1 volt / Newton
• 1 Coulomb
• 1 Coulomb / volt