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Physics ICS Part 1 Chapter 10 Online Test
| Sr. # | Questions | Answers Choice |
|---|---|---|
| 1 | If the current passing through a wire in a magnetic fiedl is doubled, the magnetic force would become. |
<p>Twice</p> <p>Six times</p> <p>Five times</p> <p>Four times</p> |
| 2 | Two free parallel straight wires carrying curreint int he same direction |
<p>Attract each other</p> <p>Repel each other</p> <p>Do not affect each other</p> <p>Get rotated</p> |
| 3 | Two free parallel straight wires carrying currents inthe opposite direction |
<p>Do not affect wach other</p> <p>Repel each other</p> <p>Attract each other</p> <p>Get rotated</p> |
| 4 | If electric current flows from top towards the bottom through a wire then the direction of lines of force would be . |
<p>Parallel to the wire</p> <p>Perpendicular to the wire</p> <p>Clockwise around the wire</p> <p>Anticlockwise around the wire</p> |
| 5 | The direction of line of magetic force can be found by |
<p>Right hand rule</p> <p>Left and rule</p> <p>Hund's rule</p> <p>Left and right hand rules</p> |
| 6 | If a current is passing through a wire, the magnet lines of fore are. |
<p>Concentric circles</p> <p>Parallel to the wire</p> <p>Perpendicular to the wire</p> <p>Inclined to the wire</p> |
| 7 | A magnetic compass will be deffected if it is kept near a |
<p>Charge of motion </p> <p>Charge at rest</p> <p>Both a and b</p> <p>None</p> |
| 8 | What is teh value of the current in a wire of 10 cm long of the right angle to a uniform magentic field of 0.5 1weber/m2 when the force acting on the wire is 5 N ? |
<p>1 A</p> <p>100 A</p> <p>10 A</p> <p>1000 A</p> |
| 9 | A changing magnetic field produces |
<p>Electric current</p> <p>Changing electric fiedl</p> <p>Magnetic field</p> <p>Conservative field</p> |
| 10 | Magnetic field is detected by |
<p>Ammeter</p> <p>Galvanometer</p> <p>Magnetic compass</p> <p>Avometer</p> |
| 11 | One of the following quantities that is not affected by the magentic field is |
<p>Moving charge</p> <p>Change in magenetic flux</p> <p>Current flowing in conductor</p> <p>Stationary charge</p> |
| 12 | Electrons while moving perpedicularly through a uniform magnetic field are. |
<p>Deflected towards north pole</p> <p>Deflected towards south pole</p> <p>Deflected along circular path</p> <p>Not deflected at all</p> |
| 13 | The unit NA-1 m-1 is called |
<p>Weber</p> <p>Tesla</p> <p>Coulomb</p> <p>None of these</p> |
| 14 | A moving charged particle is surrounded by |
<p>Electric field only</p> <p>Magnetic field only</p> <p>Both electric and magnetic field</p> <p>No field</p> |
| 15 | The unit of flux density is. |
<p>NA -1 m-1</p> <p>NA m-1</p> <p>N m A-2</p> <p>Nm A</p> |
| 16 | The force exrted on a wrie of 1 metee length carrying 1 ampere current placed atright angle to the magnetic field is called. |
<p>Magnetic field intensity</p> <p>Magnetic Inductiion</p> <p>Megnetic flux</p> <p>None of these</p> |
| 17 | The radius of curvature of the path of a charged particle in a uniform magentic field is directly proportional to |
<p>The particle's charge</p> <p>The particle's momentum</p> <p>The particle's energy</p> <p>The flux dinsity of the field</p> |
