ABC is a right angle triangle AB = 3 cm, BC = 4 cm charge +15, +12, -12 esu are placed at A, B and C respectively. The magnitude of the force experienced by the charge at B in dyne is -

ABC is a right angled triangle AB = 3 cm, BC = 5 cm and AC = 4 cm, then the inradius of the circle is :

ABC is a right angled triangle AB = 3 cm, BC = 5 cm and AC = 4 cm, then the inradius of the circle is :

ABC is a right angled triangle in which AB = 3cm and BC = 4cm and angleABC=pi/2 . The three charges +15,+12, -20 e.s.u are placed respectively on A, B and C. the force acting on B is

ABC is an equilateral triangle of side 10 cm. D is the mid point of BC charge 100 muC, -100 muC and 75 muC are placed at B, C and D respectively. What is the force experienced by a 1 mu C positive charge placed at A ?

ABC is a right angled triangle in which AB = 3 cm and BC = 4cm. And /_ ABC =pi//2 . The three charges +15, + 12 and -20 e.s.u. are placed respectively on A, B and C . The force acting on B is

ABC is a right angled triangle where /_B = 90° . If AB=15 cm,BC= 8 cm then find sec C.

ABC is a right triangle in which AB = 3 cm, BC = 4 cm and right angle is at B. Three charges + 15mu C + 12 mu C and -20 mu C are placed respectively at A, B and C. The force acting on the charge at B is