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VIDEO LESSON ON THE ELECTROSCOPE

THE ELECTROSCOPE

What is an electroscope?
It is a simple and an early scientific instrument that is used to detect the presence and magnitude of electric charge on a body.

Who invented the electroscope?
The first electroscope was invented by British physician William Gilbert around 1600.

What does it look like?
Below is a diagram of a gold leaf electroscope.
It consists of a glass container with a metal rod inside it. This rod has 2 thin pieces of gold foil attached to it. The other end of the metal rod has a metal plate attached to it outside the glass container.

How does it work?

• When a charged object, like the positively charged rod, is brought close the neutral metal plate of the electroscope, it causes negative charge in the gold foil, metal rod, and metal plate, to be attracted to the positive rod. 
• The plate becomes negatively charged and leaves a positive charge on the gold foil. This is called inducing a charge on the metal plate. 
• The induced positive charge on the gold leaves forces them to move apart since like charges repel. This is how we can tell that the rod is charged.
•  If the rod is now moved away from the metal plate, the charge in the electroscope will spread itself out evenly again and the leaves will fall down because there will no longer be an induced charge on them.

THINK ABOUT WHAT HAPPENS WHEN A NEGATIVELY CHARGED OBJECT IS BROUGHT CLOSE TO THE PLATE?

YOUR JOURNEY IN NURSING

This will be the next journey in the life of anyone who intends to be in the field of nursing.

According to the American Nurses Association (ANA), nursing is defined as the "protection, promotion and optimization of health and ability, prevention of illness and injury, alleviation of suffering through the diagnosis and treatment of human response, and advocacy in the care of individuals, families, communities, and population."

As you already can visualize, nursing practice has undergone dramatic changes over the years all over the world and is a multifaceted discipline, not just the care of those who are ill. To break it down again, it involves:

• Protection, promotion and optimization of health 
• Protection, promotion and optimization of ability
• Prevention of illness and injury
• Alleviation of suffering through the diagnosis of human response
• Alleviation of suffering through the treatment of human response
• Advocacy in the care of individuals,
• Advocacy in the care of families
• Advocacy in the care of communities
• Advocacy in the care of the population

Nursing is, therefore, an art as well as a science. 

HE IS IN CONTROL

35 MUST-KNOW TEST TAKING TIPS AND STRATEGIES

You must be strategic when you plan to take a test. It is not just enough to study and study without a plan. You must apply a holistic approach to your preparation. Here are "35 Must-Know Test Taking Tips & Strategies" written by Daisy Hartwell, a writer & blogger – Click here to read more.