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  1. A bar magnet has a coercivity of 4×10³ Am⁻¹. It is placed inside a solenoid
  2. In R-L-C series circuit, the potential differences across each element is 20 V.
  3. If the density of earth is doubled keeping its radius constant then acceleration
  4. A car accelerates from rest at constant rate for first 10s and covers a distance x.
  5. In a uniform circular motion,