Do you Know Increasing Internal Resistance Also Known as Runtime of a Battery?
Do you know Increasing Internal Resistance also known as runtime of a battery?
Do you know Increasing Internal Resistance also known as runtime of a battery?
To a large extent, the internal resistance, also known as impedance, determines the performance and runtime of a battery. If measured with an AC signal, the internal resistance of a battery is also referred to as impedance. High internal resistance curtails the flow of energy from the battery to the equipment.
A battery with simulated low and high internal resistance is illustrated below. While a battery with low internal resistance can deliver high current on demand, a battery with high resistance collapses with heavy current. Although the battery may hold sufficient capacity, the voltage drops to the cut-off line and the 'low battery' indicator is triggered. The equipment stops functioning and the remaining energy is undelivered.
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current electricity question ....the most u wud probably need is ohm's law n internal resistance of batteries
a high resistance voltameter is connected to a high resistance battery. it reads 9.0 V. a 24 Ohm resistor is connected across the terminals of the battery and the voltameter readin becomes 7.2V
calculate the internal resistance of the battery
the ANSWER is: 6 Ohms...
but i am not getting how we got it.....so please EXPLAIN the answer ,THE IMPORATANT THING IS TO EXPLAIN THE ANSWER N NOT DO IT...(of course i wudnt mind if u did it--it wud be a greater help)
2)factore affecting the electromotive force of a ell:
material of electrodes,electrolyte used ....
i dont understand why the distance between the two electrodes does not matter....it shud matter,,,it does change the resistance after all
plz answer even if u have got 1 answer...any help wud be appreciated
no,this is not a 12th standard practical question but a 10th standard,theory question......i have this question already solved in my book---its just that i dont understand how they got it
why did we do 7.2/24 n not 7.2/(24+internal resistance)
sorry,that wasnt high resistance battery...it wud be 'dry cell battery'
thanks,andy but i was asking for a qualitative explanation ,not this formula one...this one is very direct....i wanted the big one...thanks anyways...good luck!
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internal resis. prob.?
When a battery sends current through a resistace R1 for time t,the heat produced in the resistor is Q.When the same battery sends current through another resistance R2 for time t,the heat produced in R2 is again Q.The internal resistance of battery is-
1. (R1R2\2)^1\2
2. R1R2^1\2
3. R1-R2\2
4. R1+R2\2
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Physics-- Ohms?
9.0 V battery connected to a 47 ohm resistor. internal resistance of battery is 2.0ohms
calculate the no of electrons that leave battery every second
calculate terminal voltage of battery
if 72 ohm resistor is placed in parallel with 47ohm resistor calculate the total power dissipated in the circuit.
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EMF and Internal Resistance of battery?
A variable resistor R is connected across the terminals of a battery. The figure (Figure in link below) shows the current in the circuit as R is varied.
http://img25.imageshack.us/img25/1206/32p44.jpg
What is the emf of the battery?
What is the internal resistance of the battery?
Thanks so much! And let me know if link works :)
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EMF and Internal Resistance of battery with parallel resistors?
What is the emf of the battery in the figure?
What is the internal resistance of the battery in the figure?
Figure in this link:
http://img23.imageshack.us/img23/6901/32...
Thanks so much!
Sorry! Here is the WORKING link:
http://img23.imageshack.us/img23/6901/32p46.jpg
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EMF and Internal Resistance of battery?
A variable resistor R is connected across the terminals of a battery. The figure (Figure in link below) shows the current in the circuit as R is varied.
http://img25.imageshack.us/img25/1206/32...
What is the emf of the battery?
What is the internal resistance of the battery?
Thanks so much!
Sorry- this the WORKING link:
http://img25.imageshack.us/img25/1206/32p44.jpg
Get the answers...
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EMF and Internal Resistance of battery with parallel resistors?
What is the emf of the battery in the figure?
What is the internal resistance of the battery in the figure?
Figure in this link:
http://img23.imageshack.us/img23/6901/32p46.jpg
Thanks so much!
Get the answers...
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