Please help me with this question.You are an electrician on the job.You have been given a multimeter that has the following ac voltage ranges:30,60 and 150.The meter state that it has a resistance of 5000ohm/v.You need to be able to measure a voltage of 277 volts.How much resistace should be inserted in series with the meter to make the 30-volt range indicate a full scale value of 300 volts?