How is a voltmeter connected in the circuit to measure the potential difference between two points?
Solution and Explanation
Top Questions on Electric Potential And Potential Difference
- A thin spherical shell is charged by some source. The potential difference between the two points C and P (in V) shown in the figure is:
(Take \(\frac{1}{4}\pi\epsilon_0 = 9 × 109\)\(\frac{1}{4\pi\epsilon_0}=9\times10^9\) SI units)
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Choose correct graph of electric potential for uniformly charged hollow sphere.
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Questions Asked in CBSE X exam
- Which of the following statement(s) is (are) true about human heart?
(a) Right atrium receives oxygenated blood from lungs through pulmonary artery.
(b) Left atrium transfers oxygenated blood to left ventricle which sends it to various parts of the body.
(c) Right atrium receives deoxygenated blood through vena cava from upper and lower body.
(d) Left atrium transfers oxygenated blood to aorta which sends it to different parts of the body.- CBSE Class X - 2024
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Reason (R) : Rainbow is formed in the sky when the sun is overhead and water droplets are also present in air.- CBSE Class X - 2024
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- Assertion (A): The sum of the first fifteen terms of the AP $21, 18, 15, 12, \dots$ is zero.
Reason (R): The sum of the first $n$ terms of an AP with first term $a$ and common difference $d$ is given by: \[ S_n = \frac{n}{2} \left[ a + (n - 1) d \right]. \]- CBSE Class X - 2024
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- Give reasons for the following:
(i) Alveoli in lungs are richly supplied with blood capillaries.
(ii) Respiratory pigment in the blood takes up oxygen and not carbon dioxide.
(iii) During anaerobic respiration, a 3-carbon molecule is formed as an end product instead of CO2 in human beings.
OR
(i) Name the movements that occur all along the gut in human digestive system. How do they help in digestion?
(ii) Where is bile juice stored in human body? List two roles of bile juice.- CBSE Class X - 2024
- The respiratory system
Concepts Used:
Electric Potential
Electric potential, also known as voltage, is a scalar quantity that measures the amount of electric potential energy per unit charge in an electric field. It is denoted by the symbol V and is measured in volts (V).
The electric potential at a point in an electric field is defined as the amount of work done per unit charge to bring a positive test charge from infinity to that point. The electric potential at a point is also equal to the potential energy per unit charge of a positive test charge placed at that point.
Electric potential is a fundamental concept in electromagnetism and is used to describe the behavior of electric fields and charges. It is also used to calculate the electric potential difference, or voltage, between two points in an electric field.
The electric potential difference between two points is equal to the work done per unit charge to move a positive test charge from one point to the other. The electric potential difference is also equal to the product of the electric field strength and the distance between the two points.
Electric potential has many practical applications, such as in the design and operation of electrical circuits, electric motors, and generators. It is also used in electroplating, electrochemical cells, and other electrochemical processes. Understanding electric potential is crucial for the development and advancement of modern technology.