Question 1 What is meant by series combination of resistors? Question 2 You are provided with three resistors R1, R2 and R3 . Write the formula for the equivalent resistance R when there resistors are connected in series? Question 3 A resistance of 6 Ω is connected in series with another resistor of 4 Ω. A potential difference of 20 volts is applied across the … [Read more...] about Resistance are Connected in Series
Class 10
Circuit Diagram
Question 1 What is a circuit diagram? Question 2 Write the symbol for voltmeter and ammeter? Circuit Diagram A diagram showing the arrangement of various components in an electric circuit with the help of their symbols is called circuit diagram. … [Read more...] about Circuit Diagram
Control and Coordination-Nervous System
Question 1 Define the term stimuli? Question 2 Define the term coordination? Question 3 What are neurons? Question 4 Explain the structure of neuron? Question 5 What is the function of nervous system? Question 6 What is synapses? Control and coordination The change in environment to which organism respond and react is called stimuli. The environmental … [Read more...] about Control and Coordination-Nervous System
Indicators
Question 1 What is an indicator? Question 2 Name the common indicators used to test acid, bases and salts? Question 3 What are olfactory indicators. Give examples? Question 4 What is the colour of Phenolphthalein in acidic and basic medium? Question 5 What is the colour of methyl orange in acidic and basic medium? Acid, Bases and Salts On the basis of chemical … [Read more...] about Indicators
Chemical Reaction and Equation
Question 1 What is meant by chemical reaction. Give one example of Chemical reactions? Question 2 What are reactants? Question 3 What are products? Question 4 Why should magnesium ribbon be cleaned before burning in air? Chemical Reaction and Equation Chemical reactions are the processes in which new substance with new properties are formed. Only a rearrangement … [Read more...] about Chemical Reaction and Equation