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Charging by Friction, Contact and Induction
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Series and Parallel Circuits
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Ohm's Law and the Resistivity of a Wire
Step 1 of 6
Teacher mode
1. Current is flowing charge
1. Current
2. Emf and potential difference
2. Emf, p.d.
3. Ohm’s law
3. Ohm’s law
4. Resistance of a wire
4.
R
=
ρL
/
A
5. Measure the resistivity
5. Measure
ρ
6. Challenge
6. Challenge
Predict first
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