Download App

P-1 Effects of electric current — Science STD 10 — Question

Maharashtra BoardEnglish MediumSTD 10ScienceP-1 Effects of electric current3 Marks
Question
Statement 1: Electric current (flow of electrons) creates heat in a resistor.
Statement 2: Heat in the resistor is created according to the law of energy conservation.
Explain Statement 1 with the help of Statement 2. (Practice Activity Sheet – 2)
✓

Answer

(1) When electrons flow through a resistor (during flow of electric current) electrons possess kinetic energy.
(2) During the flow of electrons there is a decrease in the kinetic energy of the electrons due to collisions with atoms, ions and molecules.
(3) According to the law of conservation of energy, this decrease in the kinetic energy of the electrons gets converted into heat.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "Answer the following questions: [3 M]" from P-1 Effects of electric current→P-1 Effects of electric current — all question types→Science STD 10 question papers→Maharashtra Board STD 10 question papers→Maharashtra Board question paper generator→

Similar questions

(Nocardia, Geobacter, Ideonella sakaiensis, Pseudomonas, Alcanovorax borkumensis, hydrocarbonoclastic, Acidophillium, streptomyces)
Bacteria like ………… spp. and ………. have the ability to destroy the pyridines and other chemicals. Hence, these bacteria are used to clear the oil spills. These are called ………. bacteria. It has been observed that species like Vibrio, …………… can decompose the PET. Similarly, species of fungi like ………… have ability of decomposing rubber from garbage. Sulphuric acid is source of energy for some species of bacteria like ………… Hence, these bacteria can control the soil pollution occurring due to acid rain. …………..convert the salts of uranium into insoluble salts.
→
An object is 24cm away from a concave mirror and its image is 16cm from the mirror. Find the focal length and radius of curvature of the mirror, and the magnification of the image.
→
In the figure given alongside, a narrow beam of white light is shown to pass through a triangular glass prism. After passing through the prism, it produces a spectrum YX on the screen:
State the colour seen.
  1. At X, and
  2. At Y​​​​​​​​​​​​

​​​​​​​​​​​​
  1. violet.
  2. Red
  1. ​​​​​​​Why do different colours of white light bend through different angles with respect to the incident beam of light?
→
Observe the given figure and answer the following questions:
i. Name the process represented by the figure.
ii. State the two laws related to the process.
Image
→
In the extraction of aluminium:
(i) Name the process of concentration of bauxite
(ii) Write the cathode reaction in electrolytic reduction of alumina.
(iii) Write the function and formula of cryolite in the extraction of aluminium.
(iv) write an equation for the action of heat on aluminium hydroxide.
(v) Draw the diagram of extraction of aluminium.
(vi) Write the anode reaction in electrolytic reduction of alumina.
(vii) Write the cathode reaction in electrolytic reduction of alumina.
→
Will light travel through a glass slab with the same velocity as it travels in air?
→
Draw a neat labelled diagram.Schematic of nuclear power plant.
→
 What is the role of microbes in compost production?
→
Explain the reactivity series of the metals.
→
Draw a neat and labelled diagram for dispersion of light.
→