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left and in the middle and the switch is at the top on the right.

                            Step 3

                            Look at this circuit diagram and complete the description  V     A
                            The battery ........  in  the ........ of  the ........  at  the ........ and  a ...it.
                            The ....... is in ....... .on ...... right. The lamp is on ........ towards …..
                            switch ........ .

                                  Language Point
                            Resistance  (R) is measured in ohms (W)
                            Current (I) is measured in amps (A)
                            Voltage (V) is measured in volts (V)
                            This formula is used to calculate the resistance in a circuit.
                            V=I·R (V equals I times R).

                                  Fill in the gaps:

                                  V - voltage measured in volts, V
                                  I -
                                  R -
                                  Look at this circuit diagram:
                                                      is the symbol for a resistor. A resistor is made of
                                      R
                            a material, which resists the flow of electricity. Some resistors are
                            made of nichrome.
                                             ?               To calculate the voltage, V:
                                            V
                                                             V=I·R=5·2=10
                                                             V=10 volts


                                  5A

                                           2Ώ


                                  Read out the calculations in full, for example, voltage equals
                            current times resistance, which is five times two… .


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