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The effective resistance of a parallel connection that consists of four wires of equal legth, equal area of cross-section and same material is 0-25 Ω. What will be the effective resistance if they are connected in series?
Given that four wires of equal length, cross-sectional area and material are connected in parallel and their effective resistance is 0.25 Ω, we need to determine their effective resistance when connected in series. Let the resistance of each wire be R. Since they are connected in parallel, the effecRead more
Given that four wires of equal length, cross-sectional area and material are connected in parallel and their effective resistance is 0.25 Ω, we need to determine their effective resistance when connected in series.
See lessLet the resistance of each wire be R. Since they are connected in parallel, the effective resistance
parallel
R parallel is given by:
1/Rparallel = 1/R +1/R + 1/R
1/0.25 = 4/R
R = 1Ω
So, each individual wire has a resistance of 1 Ω.
When connected in series, the total resistance is simply the sum of the individual resistances:
Rseries = R +R + R + R = 1 + 1 + 1 + 1 = 4Ω
Correct option: (a) 4 Ω.
How was music used as a tool for social messaging during the freedom struggle?
Music played a crucial role in India's freedom struggle by spreading nationalistic sentiments and raising awareness. Leaders like Mahatma Gandhi and Subhas Chandra Bose used songs to unite people and inspire resistance. Patriotic songs encouraged collective action and boosted morale. Music in protesRead more
Music played a crucial role in India’s freedom struggle by spreading nationalistic sentiments and raising awareness. Leaders like Mahatma Gandhi and Subhas Chandra Bose used songs to unite people and inspire resistance. Patriotic songs encouraged collective action and boosted morale. Music in protests and meetings helped reinforce the ideals of independence, making it a powerful tool against colonial oppression. Songs also preserved cultural identity and motivated people to fight for their rights.
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Rabindranath Tagore was an influential poet, writer and thinker who played a key role in shaping modern Indian literature and philosophy. He won the Nobel Prize for his work Gitanjali, becoming the first non-European laureate. He composed India’s national anthem and promoted education, nationalism and cultural reform. His works inspired the freedom movement and his vision of global unity influenced generations. His contributions remain significant in literature, education and nationalism.
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