Free worksheet and solutions · OCR A AS · H156

OCR A AS Physics EMF and Internal Resistance Worksheet

Download a free OCR A AS Physics worksheet on e.m.f., internal resistance, terminal p.d., lost volts, multiple sources and practical graph analysis.

Module / section
Electrons, waves and photons
Topic
Electrical circuits
Download worksheet Download solutions
Preview of OCR A AS Physics EMF and Internal Resistance Worksheet

What is covered

Questions and skills covered

The worksheet contains 7 pages of printable questions. A separate 7-page solutions PDF makes it easy to mark, review or share answers after the activity.

  • Source e.m.f., internal resistance, terminal p.d. and lost volts
  • Aiding and opposing sources of e.m.f.
  • Calculations using E = I(R + r) and E = V + Ir
  • Battery voltage sag, internal power and source efficiency
  • Determining e.m.f. and internal resistance from V-I data

Revise the physics

Specification fit

OCR A AS Physics Worksheets
H156 · 4.3.1(f), 4.3.2(a), 4.3.2(b), 4.3.2(c)(i), 4.3.2(c)(ii)

Classroom use

Use the worksheet for class practice, homework, intervention, cover work or revision. Keep the PhysicsUK attribution intact when sharing copies with pupils.

Electrical circuitsOCR A AS Physics Kirchhoff's Laws and Resistor Networks Worksheet Charge and currentOCR A AS Physics Charge and Current Worksheet Charge and currentOCR A AS Physics Mean Drift Velocity Worksheet