Resistance Of Ideal Ammeter. Web an ammeter is used to measure the current in a circuit. Web the ideal ammeter will have zero resistance so as not to disturb the circuit.
5.2 Ammeters, Voltmeters & Potential Dividers
Web the ideal ammeter will have zero resistance so as not to disturb the circuit. It is connected in series with the circuit to avoid division of current, but ‘when placed in series with the circuit, it increases the resistance and decreases the current being measured by it. With voltmeters, we want as little current to be drawn as possible from the circuit under test. The shunt is nothing more than a resistor with a very low resistance. Web an ammeter is used to measure the current in a circuit. Web an ammeter ideally should have zero resistance if it is not to have absolutely any effect on current being measured. The ammeter and voltmeter readings are medium view solution > assertion An ammeter if have resistance can make equivalent circuit resistance more than that of the actual circuit resistance. So our correct answer is, option d, zero. Web ammeter is a device that is applied in series to the circuit through which we want to calculate the current.
With voltmeters, we want as little current to be drawn as possible from the circuit under test. We will find the shunt as part of the ammeter circuit. Therefore, ammeter is made by connecting resistance in parallel with the coil of a galvanometer. Web for accurate measurement, an ammeter must have very small resistance and very large current carrying capacity. As i understand, ideally an ammeter will have zero resistance as it is connected in series with the circuit and so there will be no potential difference across the device. 0 0 similar questions an ideal ammeter (zero resistance) and ideal voltmeter (infinite resistance) are connected as shown in fig. Web an ammeter ideally should have zero resistance if it is not to have absolutely any effect on current being measured. For the ideal case, resistance of an ammeter is zero. This parallel resistance is called shunt. Web an ideal ammeter is an ammeter whose resistance is zero thus giving the user zero error in measurement. An ammeter if have resistance can make equivalent circuit resistance more than that of the actual circuit resistance.
