برقی مقناطیسیت

بارہویں جماعت · طبیعیات · 5 سوالات

نام: ____________________   تاریخ: ____________

1. The force on a charge q moving with velocity v perpendicular to a magnetic field B is:

   • A q v B
   • B q v / B
   • C Zero
   • D q B / v

2. A charged particle moving along the direction of a magnetic field experiences:

   • A Maximum force
   • B A force opposite to motion
   • C A force along the field
   • D No force

3. The magnetic field inside a solenoid depends on:

   • A Only its length
   • B Only its radius
   • C Its colour
   • D Turns per unit length and current

4. Ampere's law relates the line integral of B around a closed loop to the:

   • A Flux
   • B Current enclosed
   • C Mass
   • D Charge enclosed

5. A galvanometer is converted into an ammeter by connecting a:

   • A Capacitor in parallel
   • B Battery in series
   • C Large resistance in series
   • D Small resistance in parallel