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How do the currents produced by a 1.5 volt flashlight cell and a 12 volt car battery compare if the resistance is the same?
Wiki User
∙ 14y ago
12/1.5= 8. If I = Current from 1.5 Volt source and I2 = current from 12 V source then
I = I2/8 or said in another way the current from 1.5V device is 1/8 of the current from 12 V device.
Wiki User
∙ 14y ago
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How do the currents produced by 1.5 v flashlight cell and a 12 v car battery compare if the resistance is the same?
Do you mean the maximum possible current, or the current in normal applications? Car batteries have low internal resistance since auto starter motors draw a lot of current, a CCA (cold cranking amperage) rating of around 600A is not unusual for a car battery some can be even higher.A flashlight cell is not designed for that sort of current, while the maximum will depend on cell size and chemistry, I suspect a couple of amps might be a good guess at a maximum. However, the rechargeable NiCad or NiMH cells used in portable power tools can probably put out significantly more for short periods.Driving the same load resistance the current from a 12V battery will be 8 times that from a 1.5V battery. Assuming the load is not overloading the battery (and it might overload the flashlight cell if the resistance is too small).This is simple arithmetic: 12÷1.5=8
How do the currents produced by a 1.5 V flashlight cell and a 12 V car battery compare if resistance is the same?
Do you mean the maximum possible current, or the current in normal applications? Car batteries have low internal resistance since auto starter motors draw a lot of current, a CCA (cold cranking amperage) rating of around 600A is not unusual for a car battery some can be even higher.A flashlight cell is not designed for that sort of current, while the maximum will depend on cell size and chemistry, I suspect a couple of amps might be a good guess at a maximum. However, the rechargeable NiCad or NiMH cells used in portable power tools can probably put out significantly more for short periods.Driving the same load resistance the current from a 12V battery will be 8 times that from a 1.5V battery. Assuming the load is not overloading the battery (and it might overload the flashlight cell if the resistance is too small).This is simple arithmetic: 12÷1.5=8
How do the currents produced by a 1.5 v flashlight cell and a 12 v car battery compare if the resist Is the same?
Do you mean the maximum possible current, or the current in normal applications? Car batteries have low internal resistance since auto starter motors draw a lot of current, a CCA (cold cranking amperage) rating of around 600A is not unusual for a car battery some can be even higher.A flashlight cell is not designed for that sort of current, while the maximum will depend on cell size and chemistry, I suspect a couple of amps might be a good guess at a maximum. However, the rechargeable NiCad or NiMH cells used in portable power tools can probably put out significantly more for short periods.Driving the same load resistance the current from a 12V battery will be 8 times that from a 1.5V battery. Assuming the load is not overloading the battery (and it might overload the flashlight cell if the resistance is too small).This is simple arithmetic: 12÷1.5=8
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Do you mean the maximum possible current, or the current in normal applications? Car batteries have low internal resistance since auto starter motors draw a lot of current, a CCA (cold cranking amperage) rating of around 600A is not unusual for a car battery some can be even higher.A flashlight cell is not designed for that sort of current, while the maximum will depend on cell size and chemistry, I suspect a couple of amps might be a good guess at a maximum. However, the rechargeable NiCad or NiMH cells used in portable power tools can probably put out significantly more for short periods.Driving the same load resistance the current from a 12V battery will be 8 times that from a 1.5V battery. Assuming the load is not overloading the battery (and it might overload the flashlight cell if the resistance is too small).This is simple arithmetic: 12÷1.5=8
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