0
When a negatively charged rod touches the sphere of the electroscope, negative sharge spreads throughout the metal. Since the leaves are both negatively charged, the free ends repel and move away from each other. When a positvely rod touchs the sphere, negative charges move toward the sphere, causing the leaves to be positively charged.
hope this helps :)
What else can I help you with?
Why must the sphere rod and leaves of a electroscope be a conductor and not an insulator?
A conductor allows charges to move freely throughout its material, which is essential for an electroscope to detect and respond to changes in charge. An insulator would prevent charges from moving between the leaves and sphere rod, limiting the electroscope's ability to function accurately.
Why must the sphere rod and leaves of an electroscope be conductors?
The sphere, rod, and leaves of an electroscope need to be conductors to allow the flow of electric charge. When they come into contact with a charged object, electrons can move freely within the conductors, causing the leaves to diverge due to electrostatic repulsion. If they were insulators, the charge would not be able to distribute and the electroscope would not function.
Why must your touch a charged object to the metal rod of an electroscope and not the rubber stopper?
You must touch a charged object to the metal rod of an electroscope because metal is a good conductor of electricity, allowing the charge to flow through it. The electrons from the charged object redistribute along the metal rod and into the leaves of the electroscope, causing them to repel. Rubber, on the other hand, is an insulator and does not allow the charge to flow.
How can gold leaf electroscope be used to detect an electric charge?
In order to identify the charge of a body we should use a charged electroscope. Let us say the electroscope is negatively charged. Now bring the unknown charged body 'X' near the cap of the electroscope. If the leaves diverge more the charge in 'X' must be negative. Suppose that the leaves close a little when 'X' is brought near 'C', then 'X' may have a positive charge or it may not have any charge. In order to confirm the positive charge you must bring the rod 'X' near the cap of a positively charged electroscope. If the leaves diverge more, then 'X' has positive charge.
What must salt do to make a good conductor?
Salt must be mixed with water to make salt a good conductor.
Why must the sphere rod and leaves of a electroscope be a conductor and not an insulator?
A conductor allows charges to move freely throughout its material, which is essential for an electroscope to detect and respond to changes in charge. An insulator would prevent charges from moving between the leaves and sphere rod, limiting the electroscope's ability to function accurately.
Why must the sphere rod and leaves of an electroscope be conductors?
The sphere, rod, and leaves of an electroscope need to be conductors to allow the flow of electric charge. When they come into contact with a charged object, electrons can move freely within the conductors, causing the leaves to diverge due to electrostatic repulsion. If they were insulators, the charge would not be able to distribute and the electroscope would not function.
Why must your touch a charged object to the metal rod of an electroscope and not the rubber stopper?
You must touch a charged object to the metal rod of an electroscope because metal is a good conductor of electricity, allowing the charge to flow through it. The electrons from the charged object redistribute along the metal rod and into the leaves of the electroscope, causing them to repel. Rubber, on the other hand, is an insulator and does not allow the charge to flow.
How can gold leaf electroscope be used to detect an electric charge?
In order to identify the charge of a body we should use a charged electroscope. Let us say the electroscope is negatively charged. Now bring the unknown charged body 'X' near the cap of the electroscope. If the leaves diverge more the charge in 'X' must be negative. Suppose that the leaves close a little when 'X' is brought near 'C', then 'X' may have a positive charge or it may not have any charge. In order to confirm the positive charge you must bring the rod 'X' near the cap of a positively charged electroscope. If the leaves diverge more, then 'X' has positive charge.
What must salt do to make a good conductor?
Salt must be mixed with water to make salt a good conductor.
How must the radius be changed in order to double the volume of a sphere?
The radius must be increased by 26%. (rounded)
How do you connect the wattmeter to measure the active power?
The voltage coil must be connected between the line conductor and the neutral conductor. The current coil must be connected in the line conductor. The instrument's polarity markings must be observed -if the meter reads 'downscale' (backwards), then you need to reverse the connection of one of the coils.
Must the base of a wok be a good conductor of heat?
Yes.
What must move in a coil of wire to make electricity?
A conductor
What happens to current as it travels long distances through copper wires?
The current must be the same at every point in a single conductor. For each electron that leaves the far end of the wire, an electron must enter the near end. Electrons are not manufactured or drained off at any point on the wire.
Why must a fuse always be connected in a non-earthed conductor?
It is the ungrounded conductor that carries the load current. It is that conductor that needs to be protected should a fault current occur. That is what the fuse in that circuit does.
Does every great circle of a sphere have to pass through its center?
Let's be very careful here: The "great circle" of a sphere is a circle that lies on the surface ofthe sphere, so there's no way the great circle can "pass through" the sphere's center.However, in order for the circle to be a "great circle", its center must be the center of the sphere.
