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Elsa1234
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When I connected the positive terminal of the battery to one terminal of the bulb and the other terminal (of the bulb)to the ground the bulb did not glow, even when a potential difference exists?
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Elsa1234 said:When I connected the positive terminal of the battery to one terminal of the bulb and the other terminal to the ground the bulb did not glow, even when a potential difference exists?
No this is not my circuit , the negative side of the bulb is connected to the ground instead of the negative terminal of the batterydavenn said:Im presuming ( from your description) this is your setup ...
View attachment 88323
you have a hole in the circuit ... the other side of the light bulb isn't connected to anything
Yes, there is a potential difference between the other terminal of the light bulb and the ground,
but the air resistance is VERY high ( a very good insulator). The breakdown voltage of air is at least
5000V / cm possibly higher ( someone will confirm)
Dave
If you don't connect bulb and battery to Earth then how is there a complete circuit`??Elsa1234 said:No this is not my circuit , the negative side of the bulb is connected to the ground instead of the negative terminal of the battery
There is no potential difference across the bulb. Why should the bulb care if there is a potential difference somewhere else?Elsa1234 said:When I connected the positive terminal of the battery to one terminal of the bulb and the other terminal (of the bulb)to the ground the bulb did not glow, even when a potential difference exists?
Elsa1234 said:No this is not my circuit , the negative side of the bulb is connected to the ground instead of the negative terminal of the battery
Everyone with a question about circuits should do us the courtesy of giving some sort of a labelled diagram.davenn said:so where does the negative terminal of the battery go to then ?
You may now realize how unclear your original description was
Elsa1234 said:When I connected the positive terminal of the battery to one terminal of the bulb and the other terminal (of the bulb)to the ground the bulb did not glow, even when a potential difference exists?
Potential difference between earth and battery refers to the difference in electrical potential energy between the earth (a large conducting body) and the terminals of a battery (a source of electrical energy). This potential difference allows for the flow of electric current through a circuit.
The potential difference between earth and battery is measured using a voltmeter, which is connected in parallel to the circuit. The voltmeter measures the voltage across the terminals of the battery and the voltage of the earth, and the difference between these two values is the potential difference.
The potential difference between earth and battery is created by the chemical reactions within the battery, which produce an excess of electrons at the negative terminal and a deficiency of electrons at the positive terminal. These differences in charge create an electric potential, which can be measured as the potential difference between the terminals of the battery and the earth.
The potential difference between earth and battery is significant because it enables the flow of electric current through a circuit. This current can be used to power various electrical devices and perform useful work. Additionally, the potential difference between earth and battery helps to maintain the balance of electrical charges in a circuit.
The potential difference between earth and battery can impact the safety of electrical devices in two ways. Firstly, a high potential difference can cause electrical shocks and pose a danger to individuals. Secondly, if there is a large potential difference between the earth and the device, it may cause a surge of electricity that can damage the device. Therefore, it is important to properly ground electrical devices to the earth to prevent these risks.