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Water conducts electricity, and when the body is in contact with water, it lowers the resistance to current flow. This is because water contains dissolved ions that facilitate the movement of electric charge. Consequently, the presence of water increases the risk of electric shock, as the current can flow more easily through the body. In dry conditions, the resistance is higher, making it less likely for current to pass through.
What else can I help you with?
Does electricity shock you more when the voltage is lower?
The sensation from a shock is due to current flowing through your body, not the voltage. You can have a high voltage and low current and not get hurt. A Tesla Coil is an example. As the voltage gets lower your body still obeys Ohm's Law. Voltage = Current x Resistance. If the resistance of your body remains constant as the voltage gets lower, the current will be lower. However, there are many variables that determine the effect of a shock on your body. Variables include the type and amount of current (AC or DC) and the path the electricity takes through the body.
What is the least amount of current that can harm a person and what role does resistance play in this senario?
The least amount of current that can harm a person is typically around 10 milliamperes (mA), which can cause a painful shock, while currents above 30 mA can lead to serious injury or even fatality. Resistance plays a crucial role in this scenario, as it determines how much current will flow through the body when exposed to a voltage source. The higher the body's resistance (due to factors like skin condition), the lower the current for a given voltage, potentially reducing the risk of harm. Conversely, lower resistance increases the current flow, amplifying the risk of injury.
What does bioelectrical impedance analysis do?
Bioelectrical impedance measures the total amount of water in the body, using a special instrument that calculates the different degrees of resistance to a mild electrical current in different types of body tissue.
What happens when skin resistance is high?
High skin resistance can produce severe skin burns but prevent the current from entering the body
Which is the dangerous current?
You can't really separate them. It's the current flowing through your body that does the damage, but the value of the current depends on the voltage across your body -the higher the voltage, the higher the resulting current.
Why should we not touch electric appliances with your wet hands?
It's the electric current that hurts you, not the voltage. But the current is determined by:Current = Voltage / Resistance.Normally your skin has very high resistance; since resistance is in the denominator, this means low current.But water will lower your skin's resistance, thereby raising the amount of current flowing through your body.
In spite of having too much resistance why does current pass through the body?
Are you under the impression that water has "too much resistance" to electrical current? If so, I can't really explain this to you. The biggest substance one could point to in the human body is water. It's almost literally what a human body is made of. For this reason, human bodies conduct electricity extremely well. You're right to mention current instead of voltage. High voltage will stun you, but a few milliamps of current across your heart could easily kill you.
How does a sponge move water through its body?
The sponge uses the choanocytes to move a steady current through its body.
What determines how severe an electric shock will be?
The severity of an electric shock is determined by the amount of current that passes through the body, the path the current takes, and the duration of the shock. Factors such as voltage, resistance of the body, and individual health can also influence how severe the shock will be.
Why touching a bare electricity wire with current flowing through it gives a electric shock. what happens if the body is wet?
When a person touches a bare electricity wire with current flowing through it, the body completes a circuit and the electricity flows through the body, causing an electric shock. If the body is wet, the water acts as a conductor and facilitates the flow of electricity through the body. This can lead to a more severe shock as wet skin has lower resistance than dry skin.
How far can electrical current travel through a body of water?
Electrical current can travel through a body of water up to several meters, but the exact distance depends on factors such as the conductivity of the water, the voltage of the current, and the presence of any grounding or insulating materials in the water. Electric current in water poses a significant risk of electric shock and can be lethal.
Does electricity shock you more when the voltage is lower?
The sensation from a shock is due to current flowing through your body, not the voltage. You can have a high voltage and low current and not get hurt. A Tesla Coil is an example. As the voltage gets lower your body still obeys Ohm's Law. Voltage = Current x Resistance. If the resistance of your body remains constant as the voltage gets lower, the current will be lower. However, there are many variables that determine the effect of a shock on your body. Variables include the type and amount of current (AC or DC) and the path the electricity takes through the body.
Why does resistance of human body decrease to electricity when body is wet?
If you increase resistance, current is restricted (river is damed up). If you decrease restistance, current flows faster (river is wide and open). With water on our skin the current can travel across our skin instead of having to move through our bodies. The current has found a new path. Not inside our bodies but outside our bodies where there is much less resistance. Which is better? A large highway with a traffic jam or the side road next to the highway with the traffice jam The side road is effected by the traffic jam, but is still faster than the highway.
How high is your body resistance?
Your body resistance is high- hard to push electrons through.
Which nymph damselfly or dragonfly can move through water with less resistance?
damselfly nymph because it has a streamline body
Could five volts directly to the chest kill you?
It is the amount of 'current' that passes through the body that causes shock. 20mA is enough to kill you. That's 20 thousandths of an amp.The limit to the amount of current, is the electrical resistance of the body.The body's resistance can vary, depending on which part and whether it is damp or dry.For a given resistance, the current passing through it, is directly proportional to the voltage.The more voltage, the more current. For the required amperage (0.02A) to do likely harm, at 5 volts the resistance of the body would have to be as low as 250 ohms. (by ohms law).Skin tissue is normally several thousand Ohms.Therefore, in answer to you question, no, you wouldn't even feel it.
Identify what determines the damage caused to the human body by an electric shock?
The amount of current flowing through the body, the duration of the shock, and the path the current takes through the body are the main determinants of the damage caused by an electric shock. Additionally, factors like the electrical resistance of the body and the voltage of the electrical source can also affect the severity of the injury.
