Let the emfs be E₁ and E₂. From the potentiometer principle: E₁ + E₂/E₁ – E₂ = 50/10 = 5 Solving, E₁/E₂ = 5/1. Answer: (d) 5:1.
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Using P = V²R/(R+r)² , equating power for R = 4Ω and R = 1Ω, solving gives r = 2Ω and E = 12V. Maximum power = 18W. Answer: (c).
The current is given by I = dQ/dt = a – 2bt. It starts at, reaches a maximum at t = 0 and decreases linearly with time. Thus, the correct answer is (a) decreases linearly with time.
Music, breath control and coordination help a dancer maintain rhythm in a performance. These elements ensure each step is timed perfectly, movements flow smoothly and the dancer stays in sync with the musical beats. Class 6 NCERT Arts Chapter 12 My ...
Bharatanatyam is known for its graceful hand gestures and storytelling. It uses mudras, facial expressions and structured body movements to narrate stories from mythology, making it one of the most expressive and refined classical dance forms. Class 6 NCERT Arts Chapter ...