किस प्रकार की त्रुटि (error) मुख्य रूप से किसी उपकरण की सटीकता (accuracy) को प्रभावित करती है?

Strain gauges typically work by detecting a change in which electrical property?

When a strain gauge and an elastic member combination is specifically designed and used for weighing or force measurement, it is called a ______.