दो राशियों, P और Q के मापन से जुड़ी स्वतंत्र यादृच्छिक त्रुटियां (random errors) क्रमशः 10% और 2% हैं। भागफल PQ के परिकलित मान में अधिकतम प्रतिशत यादृच्छिक त्रुटि क्या होगी?

The limiting errors in the measurement of the power consumed by a resistor and the current flowing through it are ±3% and ±1%, respectively. What is the limiting error in the measurement of the resistance?

Which type of experimental error cannot be completely eliminated but can be significantly minimized by taking a large number of repeated measurements?