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Physics 10th Class English Medium Unit 8 Online Test
| Sr. # | Questions | Answers Choice |
|---|---|---|
| 1 | The filament of an electric bulb is made of: |
<p class="MsoNormal">Nickel<o:p></o:p></p> <p class="MsoNormal">Aluminium<o:p></o:p></p> <p class="MsoNormal">Tungsten<o:p></o:p></p> <p class="MsoNormal">Carbon<o:p></o:p></p> |
| 2 | Electric potential and e.m.f.: |
<p class="MsoNormal">Are the same terms<o:p></o:p></p> <p class="MsoNormal">Are the different terms<o:p></o:p></p> <p class="MsoNormal">Have different units<o:p></o:p></p> <p class="MsoNormal">Both b and c<o:p></o:p></p> |
| 3 | Why household appliances should be connected in parallel
with the voltage source: |
<p class="MsoNormal">To increase the resistance of the circuit<o:p></o:p></p> <p class="MsoNormal">To decrease the resistance of the circuit<o:p></o:p></p> <p class="MsoNormal">To provide each appliance the same voltage as the power source<o:p></o:p></p> <p class="MsoNormal">To provide each appliance the same current as the power source<o:p></o:p></p> |
| 4 | What happens to the intensity or the brightness of the lamps
connected in series as more and more lamps are added: |
<p class="MsoNormal">Increases<o:p></o:p></p> <p class="MsoNormal">Decreases<o:p></o:p></p> <p class="MsoNormal">Remains the same<o:p></o:p></p> <p class="MsoNormal">Cannot be predicted<o:p></o:p></p> |
| 5 | What is the voltage across a 6 Ω resistor when 3 A of current passes through it: |
<p class="MsoNormal">2 V<o:p></o:p></p> 9V 18 V 36 V |
| 6 | If a dielectric medium is present between two point charges
them electrostatic force will be: |
<p class="MsoNormal">Increased<o:p></o:p></p> <p class="MsoNormal">Decreased<o:p></o:p></p> <p class="MsoNormal">Vanishes<o:p></o:p></p> <p class="MsoNormal">Remain same<o:p></o:p></p> |
| 7 | The substances which do not have free electrons are called: |
<p class="MsoNormal">Insulators<o:p></o:p></p> <p class="MsoNormal">Conductors<o:p></o:p></p> <p class="MsoNormal">Semiconductors<o:p></o:p></p> <p class="MsoNormal">None of these<o:p></o:p></p> |
| 8 | The electric potential energy per unit charge is called: |
<p class="MsoNormal">Electric field<o:p></o:p></p> <p class="MsoNormal">Electric potential<o:p></o:p></p> <p class="MsoNormal">Electric intensity<o:p></o:p></p> <p class="MsoNormal">All of above<o:p></o:p></p> |
| 9 | A unit of electric charge, equal to the charge of 6.25x1018
electrons is: |
<p class="MsoNormal">Electricity<o:p></o:p></p> <p class="MsoNormal">Coulomb<o:p></o:p></p> <p class="MsoNormal">Electric potential<o:p></o:p></p> <p class="MsoNormal">Volt<o:p></o:p></p> |
| 10 | Capacitors are mainly used for radio frequency tuning: |
<p class="MsoNormal">Paper capacitor<o:p></o:p></p> <p class="MsoNormal">Air capacitor<o:p></o:p></p> <p class="MsoNormal">Mica capacitor<o:p></o:p></p> <p class="MsoNormal">Electrolytic capacitor<o:p></o:p></p> |
| 11 | A paper capacitor is usually available in the form of: |
<p class="MsoNormal">Tubes<o:p></o:p></p> <p class="MsoNormal">Rolled foil<o:p></o:p></p> <p class="MsoNormal">Disc<o:p></o:p></p> <p class="MsoNormal">Plates<o:p></o:p></p> |
| 12 | A dielectric must be: |
<p class="MsoNormal">Resistor<o:p></o:p></p> <p class="MsoNormal">Insulator<o:p></o:p></p> <p class="MsoNormal">Good conductor<o:p></o:p></p> <p class="MsoNormal">Semi conductor<o:p></o:p></p> |
