2007-07-02 19:57:29 · 6 answers · asked by raymund e 1 in Science & Mathematics ➔ Engineering
If the ammeter is unfused, it will probably blow. I've done this a couple times in my career, downright embarassing and sometimes expensive
The voltmeter will just look like an open switch - no problem.
2007-07-02 20:03:15 · answer #1 · answered by Gary H 6 · 0⤊ 0⤋
First of all, let us assumed that the ammeter has a very low resistance almost 0 ohm while the voltmeter has very high resistance more than megaohms. So, if you will connect this two in same manner as you said. Then, you are like short circuiting the circuit and at same time opening the circuit. Therefore, it depends upon on which is connected first and which one is nearest to the supply point. If the ammeter is connected first and nearest to the supply then the circuit is shorted and tripped the circuit breaker of that line. But if the voltmeter is connected first and nearest to the supply then it will not blow anything but the circuit will not work. Due to no current will flow into the load.
2007-07-03 02:59:34 · answer #2 · answered by dongskie mcmelenccx 3 · 0⤊ 0⤋
You may burn the ammeter. Here is why:
The voltmeter is a high resistance device so that it draws negligible current and doesn't introduce significant error in voltage measurement. Hence it is to be connected in parallel.
The ammeter is a low resistance device so that it does not significantly affect the current flowing through the circuit. Hence it is to be connected always in series.
If you reverse them, the voltmeter being in series offers a high resistance and most of the current will flow through the ammeter which may not withstand the high current and may thus get burnt out.
2007-07-02 20:05:24 · answer #3 · answered by Swamy 7 · 0⤊ 0⤋
Putting a voltmeter in series with your circuit will give you an inaccurate reading (its high resistance will likely dominate the total impedence of the circuit you're measuring).
2007-07-05 20:00:00 · answer #4 · answered by munchkinspop 2 · 0⤊ 0⤋
The Voltmeter is used to degree the electrical powered skill distinction between 2 factors... so that's no use to connect it in series , because of fact the electrical powered skill distinction between 2 factors on the comparable line is 0 ==> the readings will continually be 0. The Ammeter is used to degree the electrical powered cutting-edge in a circuit... so that's no use to connect it in Parallel , for the reason which you % to appreciate the present flowing in this twine. notice the interior Resistance of the Ammeter is quite little and extremely severe for the Voltmeter --> so that they gained't influence the circuit.
2017-01-23 10:21:41 · answer #5 · answered by mixell 3 · 0⤊ 0⤋
an tiny Explosion in lab. nothing much !!!
2007-07-02 20:03:00 · answer #6 · answered by Sant 2 · 0⤊ 0⤋