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Physics Fsc Part 1 Full Book Online Test
| Sr. # | Questions | Answers Choice |
|---|---|---|
| 1 | The electric field created bypositive point charge is. |
<p>Radially inward</p> <p>Radially outward</p> <p>Zero</p> <p>Cirular</p> |
| 2 | If chargeis mvoed against the electric field, it will gain |
<p>Potential energy</p> <p>Kinetic energy</p> <p>Electric potential energy</p> <p>Mechanical energy</p> |
| 3 | Gaussian surface is |
<p>Imaginary</p> <p>Closed </p> <p>Both a and b</p> <p>Real</p> |
| 4 | If the vector area is parallel to the field lies, then electric flux is. |
<p>A maximum</p> <p>Infinite</p> <p>Minimum</p> <p>Remained the same</p> |
| 5 | A heat sensitive resisstor is called. |
<p>Thermistor</p> <p>Variable resistor</p> <p>Fixed resistor</p> <p>None</p> |
| 6 | If the source of e.m.f. is gtraversed from negative to positive termina, the potential change is. |
<p>Positive</p> <p>Negative</p> <p>Zero</p> <p>Constant</p> |
| 7 | A wheatstone bridge consts of ......resistors. |
<p>3</p> <p>4</p> <p>2</p> <p>5</p> |
| 8 | Wheatstone bridge is used to measrue the unknown. |
<p>Resistance</p> <p>Current</p> <p>Voltage</p> <p>None</p> |
| 9 | In wheatstone bridge all the four arms have equal resistanc eR. If the resistance of galvanometer arm is also R the equivalent resistance of the combination |
<p>R</p> <p>R/4</p> <p>R/2</p> <p>2R</p> |
| 10 | Maximum power is delivered to a load when internal resistance of soruce is. |
<p>Less than load</p> <p>Equal the load resistance</p> <p>Greater than the load resistance</p> <p>Does not depend on load resistance</p> |
| 11 | Electric bulb does not obey Ohm's law becasue |
<p>Temperature changes</p> <p>Resistance changes</p> <p>Heat is prodcued</p> <p>All</p> |
| 12 | Ohm's law can be expressed as. |
<p>I = VR</p> <p>R = IV</p> <p>V = RI</p> <p>V = I/R</p> |
| 13 | Internal resistanc and e.m.f of a cell can be determined by an instrument. |
<p>CRO</p> <p>AVO Meter</p> <p>Botha CRO and AVO meter</p> <p>Potentiometer</p> |
| 14 | The best instrument used for teh acccurate measurement of e.m.g. of a cell is. |
<p>potentiometer</p> <p>Wheatstone bridge</p> <p>Ammeter</p> <p>Voltmeter</p> |
| 15 | A potentiometer can be used as to. |
<p>Determine E.M.F. of a cell</p> <p>Campare e.em.f s.</p> <p>measrue accurate value of current</p> <p>All of above</p> |
| 16 | The SI unit of conductance is. |
<p>mho -meter</p> <p>ohm</p> <p>mho</p> <p>moh meter</p> |
| 17 | mho m-1 is the SI unit of. |
<p>Conductance</p> <p>Conductivity</p> <p>Resistance</p> <p>Resistivity</p> |
