A. strong spring B. low numbers of turns C. small area of coil D. soft iron core Correct Answer: Option…
A. length B. mass C. temperature D. cross-sectional area Correct Answer: Option B B. mass
A. blue B. brown C. yellow D. yellow and green Correct Answer: Option B B. brown
A. 20V B. 30V C. 38V D. 40V Correct Answer: Option D D. 40V Explanation V = IR1 + IR2…
A. 2.0V B. 2.3V C. 3.0V D. 0.7V Correct Answer: Option B B. 2.3V Explanation V = IR = 0.97…
A. 0.60A B. 0.97A C. 1.03A D. 5.00A Correct Answer: Option B B. 0.97A Explanation 1/R=1/R1+1/R2 = 1/6+1/4 R =…
A. water pumping machines B. ceiling fans C. electric irons D. television sets Correct Answer: Option C C. electric irons
A. decrease B. increase C. remain the same D. increase and collapse immediately Correct Answer: Option B B. increase
A. decreases B. increases C. varies as L² D. varies as √L Correct Answer: Option A A. decreases
A. frequency B. quality C. loudness D. pitch Correct Answer: Option C C. loudness