Problemas
Multiple Choice 1 point What is the apparatus that tests for charges by the actions of two pieces of metal foll is called? magnetoscope Van de Graaf Generator Pith Ball Apparatus electroscope
Roztwór
Diego
élite · Tutor durante 8 años
4
(144 Votos)
Respuesta
The correct answer is 'D', the electroscope.
Explicación
## Step 1The question is asking for the name of the apparatus that tests for charges by the actions of two pieces of metal foil. The options provided are magnetoscope, Van de Graaf Generator, Pith Ball Apparatus, and electroscope.## Step 2The magnetoscope is used to detect the presence of a magnetic field, not charges. The Van de Graaf Generator is used to generate high voltages and can be used to demonstrate the effects of static electricity, but it does not test for charges by the actions of two pieces of metal foil. The Pith Ball Apparatus is used to demonstrate the attraction and repulsion between charged and uncharged objects, but it does not test for charges by the actions of two pieces of metal foil.## Step 3The electroscope, on the other hand, is specifically designed to detect the presence of an electric charge. It consists of a metal cap connected by a metal stem to two thin leaves of gold foil protected from air disturbance in a jar. When a charged object touches the cap, the charge is transferred to the leaves, causing them to repel each other and spread apart. This is a clear indication of the presence of an electric charge.