If the electric potential at a point is 100 V, what is the work done in moving a

Practice Questions

Q1
If the electric potential at a point is 100 V, what is the work done in moving a charge of 2 C from infinity to that point?
  1. 200 J
  2. 100 J
  3. 50 J
  4. 0 J

Questions & Step-by-Step Solutions

If the electric potential at a point is 100 V, what is the work done in moving a charge of 2 C from infinity to that point?
  • Step 1: Understand that electric potential (V) is measured in volts (V) and represents the potential energy per unit charge.
  • Step 2: Identify the charge (q) being moved, which is given as 2 coulombs (C).
  • Step 3: Note the electric potential at the point where the charge is being moved to, which is 100 volts (V).
  • Step 4: Use the formula for work done (W) in moving a charge in an electric field: W = q * V.
  • Step 5: Substitute the values into the formula: W = 2 C * 100 V.
  • Step 6: Calculate the work done: W = 200 joules (J).
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