dc voltage
Because the meter is connected backwards
If there is nothing between the two leads of the meter then there is nothing "droping" the voltage.. the meter simply reads the difference in voltage between the two leads. Put the black lead to ground and the red where you want to determine voltage.. this will tell you how many volts are at that point.
It shouldn't. The open end of a non connected neutral should have the same potential as the voltage feeding the circuit. The only time a voltage will show is when the return neutral is tested with a meter to the neutral bar or the ground return bar. It will then show what the supply voltage to the connected load is. Once this neutral is connected to the neutral bar there will be no voltage shown across the test meter between the neutral and the neutral bar or the ground bar.
ammeter in series at any side as required since it is bilateral and voltmeter is connected in parallel to measure voltage drop across it
If the circuit is carrying current then that means that the load (resistance) is in the circuit. if an ohm meter is connected in the live circuit then there would be some voltage drop at the ohm meter but as the meter has very less resistance, this would damage the instrument.
If your test meter is an analog type of meter there should be a zeroing screw on the meter face that is connected to the needle movement. Turn this screw to zero the meter. If the meter is a digital there should be a potentiometer, probably in the battery compartment that can be used to zero the display.
The source voltage.
Because the meter is connected backwards
Voltage drops need to be checked with a volt meter. Depending on where the drop is thought to be, the meter can be connected an wiring plugs to find where the drop is.
An inline volt meter is designed to have the voltage pass through it. The wire has to be cut or otherwise disconnected, and the meter installed between the disconnected ends of the wiring.
It is connected across the hot and neutral if it's voltage is 120 volts. There are two terminals on the back of a panel mount frequency meter. Line voltage to one terminal and the neutral wire to the other terminal. The working voltage will be on the meter's nameplate which is usually located on the side of the device.
If there is nothing between the two leads of the meter then there is nothing "droping" the voltage.. the meter simply reads the difference in voltage between the two leads. Put the black lead to ground and the red where you want to determine voltage.. this will tell you how many volts are at that point.
When you switch a voltmeter from a lower to a higher voltage range, an additional resistor is added in series with the meter, increasing the voltage necessary to create the same voltage drop across or current flow through the actual meter movement.
It shouldn't. The open end of a non connected neutral should have the same potential as the voltage feeding the circuit. The only time a voltage will show is when the return neutral is tested with a meter to the neutral bar or the ground return bar. It will then show what the supply voltage to the connected load is. Once this neutral is connected to the neutral bar there will be no voltage shown across the test meter between the neutral and the neutral bar or the ground bar.
It is a meter with a high wattage resistor connected parallel with the meter that drains power from the battery while it is measuring the voltage it is used to test the condition of the battery if the condition is good there will not be a large voltage drop while testing the battery
A DC motor generates power when it is rotating even when no supply is connected.
A DC motor generates power when it is rotating even when no supply is connected.