Electric circuits 0.0 / 5 PhysicsElectricityGCSEWJEC Created by: MaddiejamesxCreated on: 09-04-18 22:28 What is Current measured in? Amps 1 of 20 Where is the ammeter placed? In series with components 2 of 20 What is the rule about current in a series circuit? Current is the same at any point in a series circuit 3 of 20 What happens to current in a parallel circuit? It splits at a junction 4 of 20 What is voltage measured in? Voltz 5 of 20 Where in the circuit is the voltmeter placed? In parallel with the component 6 of 20 Give 2 advantages of mains electricity supplies being connected in parallel If one component faults, the others will continue to work & each component has the same voltage through it 7 of 20 What is the rule about voltage in a series circuit? It adds up to the supply voltage 8 of 20 What is the rule about voltage in a parallel circuit? Voltage is the same across each components 9 of 20 Give an equation for finding current Current= voltage / resistance 10 of 20 What do thermistors decrease their resistance with? Temperature (Negative temperature co-efficient) 11 of 20 What can thermistors be used as in a circuit? Temperature sensors 12 of 20 What do LDRs decrease their resistance with? Increasing light intensity 13 of 20 What can LDRs be used as in circuits? light sensors 14 of 20 What do diodes behave as? One way electrical gates 15 of 20 What do diodes do? Only allow current to flow through them in one direction 16 of 20 What happens to resistance and current of a circuit when you combine resistors? Total resistance of the circuit increases, while current decreases 17 of 20 Give the equation for finding total resistance of a circuit R=R1+R2 18 of 20 What happens to the total resistance of a circuit when resistors are combined in parallel? Total resistance of the circuit decreases 19 of 20 Give the definition of electrical power The energy transferred per unit time 20 of 20

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