D.2.1.a - Definition
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Practice Questions
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Define an electric field.
💡 Hint: Think about how charges interact with each other.
What does electric potential measure?
💡 Hint: Consider what happens when moving a charge against an electric field.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the formula for electric field strength?
💡 Hint: Think about how charge affects the force.
True or False: Electric potential is always a positive value.
💡 Hint: Consider how charges interact when bringing them closer.
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Challenge Problems
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A charged particle is placed in a uniform electric field of strength 100 N/C. Calculate the force experienced by a particle with charge +3 μC.
💡 Hint: Remember to use the formula for electric force on a charge.
A long straight wire carries a current of 30 A. Find the magnetic field strength 1 meter away from the wire. Use μ₀ = 4π x 10^-7 Tm/A.
💡 Hint: Substitute the values correctly into the formula.
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